Pond Filtration: What type of Filter System do you need. (2022)

Pond Filtration: What type of Filter System do you need. (1)

There are two main types of filter that you would use in your garden pond to keep the water clear and the fish healthy, but you will need a filtration system for those filters to work.

Novice pond keepers and beginners think the filter system keeps the pond sparking clean and healthy by just removing physical dirt from the water but this is not the case.

Yes there are filters within the system that do remove waste from your pond but it’s not the full story, there are harmful toxins in the water that also need to be filtered out, read on to find out what the filters do, why you need them and how they are used in a filtration system.

Do you need to have a filter system in your pond?

No not all ponds need to have a filtration system, it all depends on the type of pond you have.

If you don’t intend to have fish in your pond there’s no reason to have a filter.

If you are building a wildlife pond with lots of plants you can choose not to use a filter, you could even get away with having a wildlife pond with a few fish, as long as there is plenty of plant life withing the pond to create a well-balanced ecosystem.

If you do decide to build a wildlife pond, it may take some time to get a good balanced nitrogen cycle working without a filter system in place, but it can be done, just give it time.

If you want to keep a good stock of fish in your pond you must realise they produce waste, both in liquid and solid form which goes straight into your pond water, so you will need to have some sort of filtration system to clean it up, as well as other debris that falls into your pond along the way.

What you need to understand, is a fishpond is a closed environment and all the water is trapped within the pond, not like natural ponds that have streams with fresh water passing through, add fish to the equation and that static pond water will soon become dirty and full of toxins.

The actual filter system that you will need depends mainly on the size of the pond, how may fish you intend to stock and where you plan to keep the system.

This can range from a small filter system for a small pond with goldfish right up to a large multi-chamber drum filter system for a large pond full of Koi, but the principles are the same.

What types of filters are there?

There are two main filters that are used in your filtration system each one having it’s own job to do to keep your pond well-balanced, clean and healthy for your fish.

Mechanical pond filters.

The mechanical filter is the first filter your water hits in a filtration system, these take out the large particles of dirt suspended in the water.

This first stage of filtration is very important to your system, it’s there to stop any large particles of waste getting to the next stage which is biological (I will get to that in a bit).

If large particles did get past this filter it could clog the biological filter, so it’s best to get this stage right or you will have problems down the line.

There are a few methods that can be used for mechanical filtration but the most commonly used is sponges of various grades which traps the large particles of waste.

For your larger ponds you may want to go for more mechanical filtration using a multi-chamber system that has different mechanical media in each container.

Mechanical filters need to be cleaned on a regular basis to ensure they don’t get blocked and reduce the flow of water in the system.

(Video) Which is the BEST POND FILTER for Koi and other garden ponds

Biological pond filters.

Once the pond water has passed through the mechanical filters in enters stage two of the filtration system, the biological filter.

The biological filters job is to remove harmful toxins that are present in the water such as ammonia and nitrate.

Having a nice clear pond doesn’t mean the water quality is good, there could be toxins in your pond such as ammonia, nitrites and nitrates which cannot be seen, this is where the biological filters play their part.

These filters are designed to host large colonies of beneficial bacteria that convert the harmful and sometimes dangerous toxins into safe water for your fish.

Typical biological filter media can be anything from foam to plastic bio balls and bio glass to lava rock, but what they all should have is a large surface area for the good bacteria to grow on, the more bacteria the filter holds the more efficient the filter becomes.

For biological filters to work at their best they need a good mechanical filter to remove the solids before getting to them, a large colony of bacteria living on the bio media and a continuous supply of oxygen through a good flow of water to keep the bacteria alive.

It takes 4-6 weeks for a colony of bacteria to build up to a point where it reaches a good working level, so if it’s a new pond you don’t want to introduce fish until the levels are met.

Biological filters do not need to be cleaned unless there is a major problem, if you clean them you will wash away all that good bacteria that has taken so long to colonise and you will be back to square one.

Ultraviolet clarifiers.

Now I know these are not really filters in the way that mechanical and biological filters work, but they do play a part within the filtration system.

An ultraviolet clarifier (UVC) is designed to remove single cell algae, that’s the algae that cause your pond to go green.

The pond water is pumped into the clarifier and the ultraviolet lamp kills the single cell algae, once dead the algae clumps together and is collected and broken down by the biological filter or captured by the mechanical filter.

These UVC’s can be integrated within the pond filter or used as an inline standalone unit.

UV lamps have a short life and should be replaced at least once a year, if you are replacing your lamp the best time to do it would be the spring as your pond wakes up, that way you will have good UV protection through the summer months when algae is at its strongest.

Pond filtration systems.

Well now you know what each filter does it’s time to look at filtration systems.


A pre-filter is a simple mechanical filter that blocks large debris and solids before they are sucked into the pump.

Using a pre-filter is not necessary, but it can help to extend the life of the pump and improve its efficiency, just make sure you clean it on a regular basis to keep the water flowing.

Pond skimmer.

A pond skimmer is installed at the edge of your pond and will house your pond pump.

With the pump running the water is drawn to the skimmer bringing with it debris floating on the surface of the water.

The water with the debris falls through the mouth of the skimmer onto a coarse mechanical filter or a basket that captures all large debris that can be removed with ease, this system can be classed as a pre-filter because it catches the big debris before it reaches the pump.

(Video) How to set up a Pond Filter and Pump - Pond Filtration

If you are going to fit a skimmer it needs to be positioned at the opposite end to your waterfall or were the water is returned to the pond, this is to make sure you have full circulation of the pond water.

You can also use a floating surface skimmer that has its own built in pump, these are just placed into your pond and plugged in to your electricity supply, the skimmer will draw the floating debris into it’s basket, to clean just take out the basket, clean it out and replace.

These are great devices if you have a lot of falling leaves from nearby trees and plants or grass cuttings getting into your pond.

Another good benifit of having a skimmer is the pump is easy to remove for maintenance.

All in one pond pump/filter.

As a novice pond builder it’s easy to see why these look like the best and easiest filtration system to use.

After all they have a pump, filters and a UVC all combined in one small compact unit that you just pop in your pond and be done with.

Unfortunately all is not what it seems, yes they do what they say they will do, but they are only useful for a smaller pond or a pond that has very few fish.

If you have a small pond with a few fish then your in luck but anything bigger and it will struggle, that’s not to say you can’t use it alongside a larger filter set up.

Let’s say you have a full system with pump and filters but you fancy a waterfall using a separate system, you can buy a small waterfall pump that would just run the waterfall or you could use an all in one which gives you the added benefits of filters and a UVC.

Read our all-in-one pond pump review here

Flow through filters.

These flow through filters also known as box filters are perfect for the medium to large pond.

They are a simple design that contain the mechanical and biological filters inside the box, some even come with a UVC.

They are designed to sit outside the pond, but must be positioned above the water surface, the water is pumped through the box passing through the filters before flowing back into the pond through gravity.

The outlet pipe can be directed back into the pond or into a stream or waterfall, as long as the box is higher than the water feature it’s returning the water too it will work.

One of the problems of running this system is trying to hide the box, but it is a tried and tested method and is good value for money.

Waterfall filters.

These waterfall filters act in a very similar way to the flow through filters, water is pumped into the waterfall filter through mechanical and biological filters and back out through gravity.

The difference is the waterfall filter has a ledge that the water spills over to form a waterfall rather than having outlet pipes that you would direct into a purpose built waterfall.

They can be set at the edge of your pond so the water spills over the ledge straight into your pond giving a pleasing waterfall, still hard to hide though.

Pressure filters.

Pond Filtration: What type of Filter System do you need. (2)

A pressure filter comes in a big round container that can be placed anywhere around or near to the pond.

(Video) How a pond filter works and why you should build your own

Inside the pressure filter you would usually find mechanical and biological filters along with a UVC, but not all, you can get some with just mechanical filtration and some might not have the UVC.

They work by maintaining a constant water pressure (hence the name) and flow, being pressurised they are perfect for using with waterfalls or other water features as they can push water uphill to the top of any water feature.

They have an inlet and outlet for water flow plus another outlet for cleaning, the submersible pump in the pond pumps the water in through the inlet pipe which then passes through all the filtration and exits the outlet pipe.

The outlet pipe can be directed up to a waterfall or to another water feature or straight back into the pond.

Most have a cleaning system combined within the unit, this is when the cleaning outlet is used, a twist of a knob, a turn of a handle, or a pull/push on a handle depending on the make of pressure filter will clean the filters and the dirty water will be discharged through the cleaning outlet without getting your hands wet, they usually come with an indicator on top of the unit to tell you when it needs cleaning.

They don’t have to be above the waters surface like the flow through filters, so they can be placed anywhere, in fact you can bury them in the ground just leaving the top sticking out which is what most people do.

The great thing about burying a pressure filter is how easy they can be disguised so you wouldn’t even know they were there.

Check out our review on the best pressure filters here

Multi-chambered filter system.

Multi-chambered filters are just a series of flow through filters that are linked together through pipework.

The first chamber will have mechanical filtration, the pumped water passes through the foam taking out the large waste before moving on to the second chamber.

The second chamber is for biological filtration and you could pump into a third chamber also containing bio media.

They don’t come with a UVC but these can be added for full protection.

Shower filter.

These shower filters are not as common as the above filters, but they do a great job at filtering your pond water.

They are simply trays that sit on top of each other and each tray is filled with a filter media.

On top of the trays is a spray bar that takes the water from the pond pump and sprays it onto the top tray, it passes through the top tray into the next tray using gravity.

Once it has passed through all the trays it is dispatched straight into the pond giving a pleasing waterfall effect.

You can decide on how many trays you want and what media is used in each tray, for instance you could have a three tray system, the top tray filled with foam for mechanical filtration and the bottom two filled with pumice for biological filtration.

If you wanted too you can use all the trays for biological filtration as long as you used some sort of mechanical filtration first.

(Video) Which Pond Filter Is Best? Canister, Box or All in One?

Cleaning would be done by turning of the pump and cleaning the mechanical foam filters in a bucket of pond water, replace the cleaned foam and turn the pump back on, there’s no need to clean the biological media.

Drum filters.

Another filtration system that’s not commonly used but if your looking for the ultimate mechanical filtration system this is one to go for.

They can be pump fed or gravity fed but if you go for gravity fed you need to have a bottom drain in your pond.

They are designed to remove the biggest particles right down to the smallest particles of waste.

Inside the unit is a drum that has a very fine mesh that catches all the waste, once it senses the filter needs cleaning the drum turns, it then uses water from the pond to spray onto the drum to remove the waste, the waste is discharged through a separate outlet. This is all done automatically.

Once the pond water has passed through the drum filter it needs to go to a biological filter in this case a moving bed module.

The moving bed module is filled with Hel-X media which is a very efficient home to friendly bacteria.

The reason the Hel-X is moved around is to give it a a permanent supply of oxygen for the bacteria and it also acts as a self-cleaning function.

As the media moves about it knocks of any dead or old bacteria making way for new bacteria to grow.

There is one last module that can be added to the system which can house extra bio-media or if using the system as a gravity fed system houses the pump and UVC.

A UVC can be added to the inlet just before the drum to kill the one cell algae and the drum will remove the clumped up algae.

So which is the best filter system for you.

First things first, there is no such thing as over filtering a pond, go for the largest filter system that you can, you can never have too much filtration.

On the other hand your pond could get into real trouble by under filtration, even if the filter system says it will filter the size of your pond always go larger, going larger will future proof your pond as well as giving greater results.

Before buying a filter you really need to know what it’s needed for, it makes no sense to go for the ultimate filter system if you are just going to have a couple of goldfish in your pond, and the opposite of have a large selection of Koi with the minimum amount of filtration.

If you have a small pond with just a couple of goldfish then you could probably get away with the all-in-one pond/filter but keep an eye on the water and test regularly.

For a medium pond the flow through or pressure filters are going to be a good solution, just make sure they are more than adequate for the size of pond and the amount of fish you want to keep.

For a large pond with lots of fish you can get away with the very large flow through filters or even better the muti-chamber filters as well as the pressure filters, if you find one filter starts to struggle you could add extra filters to compensate without having to start again. You could have two pressure systems or a pressure system to feed the pond and a flow through system to feed a waterfall.

For the dedicated Koi pond with lots of large fish you will struggle unless you have a good filtration system, the drum system would be the way to go but it is expensive compared to other systems.

Whatever system you go for you need to test the water regularly to make sure its doing it’s job, just because the water is clear doesn’t mean the water isn’t full of harmful toxins.

(Video) Which is the best koi pond filter system? - [My Top 10]

I hope I have answered all your questions and good luck with your pond.


What kind of filter do I need for my pond? ›

There are two main types of successful pond filtration. An Ultra Violet Clarifier filter kills green water to keep the water clear, while a Biological Filter looks after the water quality to keep the fish healthy and happy.

What is the best material for a pond filter? ›

Filter foam and filter cotton are ideal for mechanical filtration. Strong nylon fibres remove coarse dirt from pond water. For biological filtration it is quite convenient to apply filter lava. This is perfect for bacterial decomposition of invisible dirt and harmful matter.

How much filtration do you need for a pond? ›

An easy way to work this out is to simply multiply your pond's capacity in litres by 1.5. As per the example above – let's say you have a 9000 litre pond: 150% of 9000 -> 9000 x 1.5 = 13,500. You will want a pond filter that is suitable for ponds up to 13,5000 litres.

What filtration is needed for a koi pond? ›

A koi pond filter is made up of a number of chambers containing different media, which act as a home for the nitrifying bacteria. Mechanical filtration is essential to the success of biological filtration as if the biological media becomes clogged, the bacteria will be starved of oxygen and will not survive.

What is needed for a pond? ›

A clean, healthy pond requires a few key elements to keep water contained, fresh, and filtered. Water agitator: Keeps water oxygenated. Fountains, waterfalls, and bubblers are all agitators. Filter: Cleans the water coming from the pump.

How big of a filter do I need for fish pond? ›

Plant filters need to be sized appropriately for the pond in order for them to work effectively. As a general guide 1 square metre of plant filter will filter approximately 2000 litres of water. Heavily stocked and/or shallow ponds may require even larger plant filters.

How do you make a filter for a fish pond? ›

DIY fish pond filter cheap easy. - YouTube

How do you filter a fish pond? ›

DIY Pond Filter Made EASY From Trash Can! - YouTube

How does a pond filtration system work? ›

As water enters the skimmer, the large debris is caught in the skimmer basket and the water is then further filtered through the horizontal mat. The pond water then travels through the plumbing buried underground, up to the biological filter where it's further treated before re-entering the pond.

Do you need a filter with a pond pump? ›

If you are planning on habiting fish in your small pond, it could be crucial that you install a pump and suitable filter system. The pump and filter not only help filter their excrement from the water but also helps keep the pond oxygenated at the correct levels for them to survive.

What is a pond pressure filter? ›

A pressure filter consists of a round container with filter materials. On top there is a cover with hose connections and the operation. Water is pressed through the filters under pressure of the pond pump. With the help of bacteria the filter removes the dirt particles from the water.

How do you make a biofilter for a pond? ›

Homemade Biological Pond Filter - YouTube

Are pressure filters good for koi ponds? ›

Standard box and pressure filters can be used for koi, but most experienced koi owners, with large fish and large ponds, choose gravity fed koi filtration systems. Koi filters can also be pump fed in the standard way, with a pump in the pond, and hose connecting pump to filter.

Can I use pool filter for pond? ›

Pool Filters And Ponds Don't Mix - YouTube

How do you install a pond pump and filter? ›

DIY Installing Pond Pump, Filter & Waterfall - YouTube

How do you prepare pond water for fish? ›

To help ensure your fish live long, happy lives, prepare the pond with these tips:
  1. Plant several types of plants that grow above and below the water. ...
  2. Eliminate the use of potentially harmful chemicals. ...
  3. Fill the pond with clean water from the sink. ...
  4. If you have a large pond, look into having a pump and filter set up.
25 Aug 2015

How deep should a pond be for a fish to survive winter? ›

During the coldest parts of winter, your pond must not freeze all of the way through. There should be enough unfrozen water at the bottom of the pond for your fish to ride out the winter. As a rule of thumb, ponds need to be at least 18 inches deep, ideally 24 inches or more, to overwinter fish.

What size pond pump do I need for my pond? ›

Pumps designed for garden ponds are sized by gallons per hour (GPH) output at one foot of lift or height. It is recommended that the entire volume of water in a garden pond be pumped per one to two hours. What this means is that a pond holding 500-gallons of water should have at least a 500 Gallon Per Hour pump.

Can your pond filter be too big? ›

You can't really over filter a pond but you can have too much flow.

What is the easiest pond filter to clean? ›

EazyPod Automatic- Self Cleaning Pond Filter from Evolution Aqua

Can I use a canister filter for a pond? ›

Fluval FX4 High-Performance Canister Filter

It is a powerful and effective filter for relatively smaller ponds (up to 1000 gallons). It can be used for even larger ponds, as it can process 700 gallons of water per hour.

How do I calculate the volume of a pond? ›

Use our handy calculator to work out your pond capacity.
  1. The easiest way to do this is to measure the length, the width and the depth of your pond in feet. ...
  2. Once you have all three dimensions, you need to multiply these all together and then multiply this calculation by 6.25.

How do I naturally filter my pond? ›

How To Get A Clean Pond In 5 Easy Steps
  1. Aerate Your Pond. Whether you have a small decorative pond, a koi pond, a larger pond or even a small lake, aerating and/or agitating the water definitely help keep your pond clean. ...
  2. Invest In A Pond Rake. ...
  3. Add The Right Plants. ...
  4. Add Colorant. ...
  5. Add Beneficial Bacteria.
7 Feb 2020

How do you clean pond water? ›

How to Clean Murky Pond Water without Chemicals | Full Version

How do you filter water in a small pond? ›

Filtration for Small Water Features with Aquascape's Pond Filter Urn

Where should a pond filter be placed? ›

They can be buried in the ground up to their lids or placed a long way away from a pond or waterfall, behind a tree or in a shed. This makes them especially useful when a waterfall is required but you don't want the filter to be seen or spoil the natural look that you've created.

Why do you need a filter in a pond? ›

Pond filters are useful in ponds that have a large population of fish, because they remove waste products from fish and any plant debris, helping keep the water clear. This, in turn ensures a balanced ecosystem.

How does external pond filter work? ›

The Pond Guy® SimplyClear™ Pressurized Filtration System for ...

Do pond pumps use a lot of electricity? ›

Pond pumps have become much more efficient over the past twenty years, but a fair amount of power will always be required to move substantial volumes of water. As a guide, electric costs for: A small spouting frog ornament (9w) --- 4p per day. The very smallest in-pond filter/UV system (18w) --- 8p per day.

What's the difference between a pond pump and filter? ›

The pump itself provides NO filtration and simply feeds water to a filter. Pressurised Filter – A sealed, pressurised filter. Water flows through these filters much more quickly as they are sealed units and thus maintain the pumps pressure.

Does my pond need a UV filter? ›

You can have a filter without a UV but don't expect to have clear water. However you must not use a UV without a filter as the dead algae will have nowhere to go and will just rot in your pond creating more problems.

How do you set up a biofilter? ›

Steps in starting a biofilter
  1. Prepare the water chemistry of the system before introducing either nitrifying bacteria or animal stock. ...
  2. Provide alkalinity, a carbon source. ...
  3. Adjust pH if necessary. ...
  4. Provide ammonia and nitrite. ...
  5. Introduce nitrifying bacteria. ...
  6. Begin monitoring water quality parameters.
30 Sept 2013

How do you make a UV pond filter? ›

DIY UV Filter Construction - Part 1 of 3 - YouTube

What are the types of biofilters? ›

The treated gases are driven through the compost pile where the microorganisms degrade the organic compounds of the vapor. There are two main types of biofilters: the soil filter and the treatment bed/disk. The major advantage of this technology is the no-sludge production.

How often do you backwash a pond filter? ›

2) How often should you clean your filters? This is a great question and is very important. All filters should be flushed at least every week.

What is a skippy filter? ›

57: How to make a DIY Skippy Filter, Wendy Filter for Fish, Ponds, Turtles

How do you clean a pressurized pond filter? ›

Cleaning a pressurised pond filter - YouTube

Is sand filter good for fish pond? ›

While a sand filter works to keep your pool clean, I really do not recommend trying to filter your fish pond with sand. When it comes to pressurized pond filters, there are a few reasons why you don't want to use sand. It will require a much larger pump to operate which can result in higher energy usage.

Do sand filters work for fish ponds? ›

Using a sand filter, also known as a swimming pool filter, on a koi pond is one possible way to provide filtration. A sand filtration system keeps the water crystal clear by trapping a large amount of solid wastes, such as algae, microorganisms and other debris.

Can I use a pool pump for my fish pond? ›

Pool pumps create more noise than pond pumps so you may want to house the equipment in a nearby shed to dampen the sound. Place the pump close to or below the water level of your pond for efficient operation. The closer you place the pump to your water features, the more efficiently it will operate.

Do I need a pump and a filter for pond? ›

How A Pump and Filter Benefits Fish. If you are planning on habiting fish in your small pond, it could be crucial that you install a pump and suitable filter system. The pump and filter not only help filter their excrement from the water but also helps keep the pond oxygenated at the correct levels for them to survive.

Does my pond need a UV filter? ›

You can have a filter without a UV but don't expect to have clear water. However you must not use a UV without a filter as the dead algae will have nowhere to go and will just rot in your pond creating more problems.

Do I need a filter for a small fish pond? ›

Small fish can often survive in a filter-less pond, but large fish, such as koi, would require a dedicated filter system.

Can goldfish survive in a pond without a pump? ›

Do I Need A Pond Pump For Goldfish? No, you do not need a pond pump for goldfish if your natural pond (no pump or filter) is set up properly. Goldfish can survive and even thrive in a pond with no filter or pump as long as you have a properly planted pond and don't overstock your pond with goldfish.

Do pond pumps use a lot of electricity? ›

Pond pumps have become much more efficient over the past twenty years, but a fair amount of power will always be required to move substantial volumes of water. As a guide, electric costs for: A small spouting frog ornament (9w) --- 4p per day. The very smallest in-pond filter/UV system (18w) --- 8p per day.

How do I circulate water in my pond without a pump? ›

Solar Aerators

A solar aerator functions in a similar way to the solar fountain pump. But instead of spitting the water directly to create aeration, it works through a tube. The tube collects air from outside and sends it into the water.

What size UV sterilizer do I need for my pond? ›

There are no strict rules, but it's common to want to use a UV lamp of between 8-12W per 10,000 litres. If you have a particularly green pond or a pond more prone to algae and bacteria than usual, you can increase the wattage of the UV light to provide more clarification.

Do UV pond filters really work? ›

UV provides 100% success for achieving clear water from single cell algae in a pond. While UV will provide clear water it does not filter the pond water. One concern of using UV in a pond is that some people will look at their perfectly clear pond and think that the water quality must be good for the fish.

Can you have too much UV in a pond? ›

No, you can't really have too much UV. It just means you're using a bit more electricity than you could get away with probably, and the bulb might cost a bit more to replace.

How do you make a homemade pond filter? ›

DIY fish pond filter cheap easy. - YouTube

Do all ponds need a pump? ›

In most cases, you cannot have a backyard pond without a pump. You'll need a pump to keep your pond's water flowing, properly oxygenated and clean of algae and unwanted bacteria. Pumps are especially necessary in ponds that contain fish such as koi and goldfish.

What kills goldfish in a pond? ›

The most common cause of fish kills is suffocation due to lack of dissolved oxygen. Most dissolved oxygen is produced by algae and aquatic plants through photosynthesis. A lesser but also important source of oxygen in water is diffusion from the atmosphere, which is enhanced by wind-induced surface water turbulence.

How do I know if there is enough oxygen in my pond? ›

One of the most common signs of stress to look out for is fish gasping for air at the surface of the pond water. Although it generally depends on the state and size of any individual pond. Its best to have at least 6mg per litre of dissolved oxygen in any body of pond water.

How do you oxygenate a pond without a pump? ›

If you don't have either an air pump or fountain, and don't want to purchase them, or there is an emergency, then the best and most simple way to add oxygen back into the pond is by spraying water with a hose.

World Of Water

An Ultra Violet Clarifier filter kills green water to keep the water clear, while a Biological Filter looks after the water quality to keep the fish healthy and happy.. Please Note: If you have a pond with extremely high fish stocks or just koi it is worth considering a larger filter as it is impossible to over filter a pond biologically.. An ultra violet clarifier is an electrical unit through which water is pumped before it enters the biological filter, and its purpose is to eliminate green water and reduce harmful bacteria in the pond.. Gravity return Biological filters (Box Filters) have a gravity outlet therefore the outlet must be higher than the point of return.Gravity outlet filters, keep the return pipe full bore, gently angled down and as short as possible.To maximise water flow ensure the largest possible inlet hose is used.Most top outlet filters will work better if partially buried keeping the sides tight around the media when full of water.Always follow manufacturers instructions for individual model requirements. Filters must run 24 hours a day (Certainly from March to October).Pass your pond water through the filter at least every 1-2 hours.Regularly check pump pre-filter to ensure good flow.Remember a filter will take weeks to become biologically active.Clear water does not mean healthy water.. Test your water regularly.Use a bacterial supplement to start and improve filter performance.Always clean filter material in a bucket of pond water not in tap water.Only clean media when flow is being inhibited.

A good pond filter is key to having a successful pond. Filtration keeps the pond water clear, oxygenated, and healthy for the fish living in…

One popular feature is UV light filtration.. Similar to aquarium filters , the primary function of a pond filter is to keep the water oxygenated, which helps create a suitable environment for beneficial bacteria.. Pond Filtration. When choosing the right filter size for your pond, choose a filtration system that has sufficient flow rate.. The rule of thumb is to install a filter with a gph rating of 1.5 times the number of gallons in your pond.. The flow rate of your filtration system will influence the oxygen level in your pond, which is very important.. Some of the most common types of filtration in a pond filter are, mechanical filtration, biological filtration, and UV filtration.. Removing the debris and sediments in the pond water is important because it keeps the water visibly cleaner, and it prevents the debris from clogging the biological filtration.. Biological filtration within a pond filter houses the beneficial bacteria, which processes the organic waste material.. Over a period of time, the beneficial bacteria will slowly establish itself on the biological filter media.. Therefore, if you are installing a new filtration system, it is best to allow the pond to cycle before adding lots of fish.. Biological filtration is one of the most important functions of a pond filter.. Therefore, this unit will support a pond of approximately 900 gallon in size.. Considering the fact that it features a UV light at this price point, the SUN Grech CPF-2500 is certainly the one of the best pond filter currently available.

World Of Water

Most beginners believe a pond filter works by removing physical dirt and it is this which keeps the water sparkling clean.. This is done by the helpful bacteria breaking down the initial toxin Ammonia into Nitrite.. A different type of helpful bacteria then breaks this dangerous Nitrite down to Nitrate which then can be absorbed by plants as they grow and is harmless to fish except in high concentrations.. Some advanced filter systems can strain out more solids from the water, but it has to be remembered that these still have to be biologically broken down unless physically removed by flushing or draining.. Low Fish Stock : For ponds which are mainly plants with a no or few fish and with normal sunlight levels.. High Fish Stock: For ponds with less plants and a higher stocking level of fish or exposed high sunlight levels.. Ultra violet clarifiers are available as a standalone unit to be added to existing biological filtration units or more commonly they are combined with a biological filter.. An ultra violet clarifier is an electrical unit through which water is pumped before it enters the biological filter, and its purpose is to eliminate green water and reduce harmful bacteria in the pond.. As the water is passed through the unit, it is subjected to high levels of U.V.. They are complex units to install and expert advice is available in our stores.. It is usually obvious when they need cleaning by either water flow reduction through a pressurised filter or by some water passing over media in gravity filters.. Do not clean all the media at once, but stagger cleaning to keep a high population of the helpful bacteria.. Filters must run 24 hours a day (Certainly from March to October).Pass your pond water through the filter at least every 1-2 hours.Regularly check pump pre-filter to ensure good flow.Remember a filter will take weeks to become biologically active.Clear water does not mean healthy water.. Test your water regularly.Use a bacterial supplement to start and improve filter performance.Always clean filter material in a bucket of pond water not in tap water.Only clean media when flow is being inhibited.

Different ponds need different hardware, & knowing what pond filter you need can be tricky. We aim to give clarity & options to pond keepers.

It needs a pond pump to supply it with water, the pond filter then acts as a sewage treatment plant, removing waste from the water and also in the case of a UV clearing the water as well. You can have a filter without a UV but don’t expect to have clear water.. There are many different types of pond filter, and once you have established what size you need it’s all down to where you want to put it and how much maintenance you want to do.. These are becoming very popular as you have one piece of equipment sitting in the pond which pumps water, filters the water and has a UV to kill Algae.. Manufacturers such as Oase, Hozelock, laguna and Bermuda all have at least one range of pressure filters.. These make sure you get the right sized pond pump with your pond filter.. Water can then pass from your pressurized filter up to a water fall or feature.. The down side to these filters is they often have a limited amount of media in them due to their smaller size and unless you choose one with a cleaning mechanism you have to open them up each time you want to maintain the filter.. The outlet of these filters MUST be above the water level in your pond for the water to fall out of the filter and back to your pond.. Pump and filter packages are also available and some of the manufacturers have made these filters even easier to clean as is the case of the OASE Biosmart systems

Filtration is an important part of keeping a pond clean and clear. There are a few different types of filtration that can be used for a pond, and the type

A pond may require a sand or gravel filter, a mechanical filter (such as a pump and strainer), or a chemical filtration system.. A pond filter system should be installed if the water quality in the pond is questionable.. Some of the types of water filters that can be used in a pond include sand and gravel filters, activated carbon filters, and ultraviolet sterilization filters.. Another way to filter your pond water is to use a pump.. Yes, koi can live in a pond without a pump, provided that the pond has good water quality and the fish are given adequate food and water.. A Brita filter can technically filter pond water, but it is not recommended because the filter will not be able to remove all of the contaminants.

Three types of pond filters are available in the market, which are biological, mechanical, and sterilizers.

In addition to plants, fish, aeration, and rocks and gravel, a low-maintenance ecosystem pond requires adequate filtration to keep the water clean and clear.. A good biological filtration system, teamed with a proper mechanical filter to remove solids before the water enters the biological filtration unit, is the most effective way to filter water.. As water enters the skimmer, the large debris is caught in the skimmer basket and the water is then further filtered through the horizontal mat.. Biological Pond Filtration Goes to Work The biological filter receives water that has already passed through the mechanical filter, or skimmer, typically placed on the opposite side of the pond.. The water then flows from the bottom to the top of the filter, traveling through filter media housed inside the unit.. If the pump isn’t running, the waterfalls aren’t flowing, and aeration is eliminated from the necessary equation to maintain an ecosystem pond.. Nitrates are also absorbed by aquatic plants and algae during their growth processes.. Surface area is provided by filter media, rocks, and gravel.. The Role of Aquatic Plants Another important component to pond filtration is the use of plants.. Algae control is not the only way plants help create a low-maintenance ecosystem pond.. Low-Maintenance Pond Experience To keep pond water quality high, the simple process of repeatedly turning the water over through the mechanical and biological filters is needed in order to create a naturally balanced, low-maintenance ecosystem pond.

Quick Tip:  Use our new Pond Filters Wizard to help you select the exact pond filter you need

What Size Pond Filter Do I Need?. Your pump and pond filter play a vital role in keeping your pond healthy and attractive.. At Water Garden, we supply our customers with German-engineered OASE pond filters .. We stock several types and sizes of filters so that you can find precisely the model that you need to maintain a healthy filtration system in your garden pond.. What Type of Pond Filter Do I Need?. When a product is advertised as a ‘UV filter’, what this really means is that the biological filter works in conjunction with a UV clarifier to clean the water and remove living algae.. Choosing the Right Size Filter for Your Pond. There are several factors that affect the size of filter that is going to be best-suited to your pond:. Shape of the pond Volume of water in the pond Physical location of the pond on your property Number of fish in the pond Number of plants in the pond. As a general rule, the minimum requirement for a pond would be a filter that is able to process the entire volume of the pond in 8 hours.. For a square or rectangular pond, all you would need to do is multiply the length, width and depth of the pond, taking these measurements in metres.. Just be sure to have the dimensions of your pond ready, and we’ll help determine what size filter you need.. Also feel free to use our new Pond Filters Wizard which will help you to select the exact pond filter you need.

Many pond owners experience water quality issues that often result in suffocated fish among other issues. Many of these problems came from pond owners never testing their ponds or taking care of their water. That’s why you need to begin taking pond maintenance seriously. The first

Many pond owners experience water quality issues that often result in suffocated fish among other issues.. Some of what you’ll find include types of pond filtration, filter types, and figuring out your pond’s volume.. When combining these benefits, beneficial bacteria create a habitable environment for aquatic organisms.. These are natural filters where water flows through the bottom of your filter and afterward moves upward.. As water passes through your filter chambers, the light will kill organisms like parasites, bacteria, fungus, and algae.. The ultraviolet lights can damage medications that your fish might be taking.. As the water fills in this filter, it will first move through a first filter that will catch the bulk of your pond’s debris.. The volume that you will need to calculate depends on different types of ponds.. To prevent your filter from overworking itself when the environment changes , you will need to adjust your pond’s volume number to figure out your effective volume:. From there, if your pond has more than 101 fish per 1,000 gallons, you will need to multiply your effective volume by 1.25 to find the total required filtration.. Once you determine your volume and filtration, find filters that companies rate to run 1.5 times your required filtration.. To find the right filter, you will need to consider your goals and afterward choose what type of filter you’ll need.

Pond filtration is necessary for maintaining a clean and balanced ecosystem in your pond. There are different kinds of filters and filtration, and each has its advantages for certain types of ponds. This process can be overwhelming, so to help you out we’ve put together some essential information about pond filtration systems and guidelines on choosing the right one for your pond. To better appreciate why filtration is a good idea, you need to understand how it works. Filtration is needed to eliminate muck, particles, and biological wastes from the water that are unhealthy for the pond. A properly installed filtration system will pull water from the bottom of your pond and circulate it, along with essential nutrients and oxygen, throughout the water garden. There are natural ways of filtering, but help from man-made filters and pumps help speed up the process of filtration. Even if your pond is solely decorative, a filtration system will help prevent stagnation, reduce algae growth, impede insect pests, and clean the water to be used in a beautiful water display. Now that we understand why filtration is important, let’s talk about the different types of filtration methods. The right choice for your pond will be based on the size of your pond, water depth and volume, and the number of plants and fish that are present in it. Types of Filtration Mechanical or physical filtration refers to the removal of particles of debris by means of passing the pond water through various filtration media. Skimmers, canister filters, and pre-filters are common examples of filters that mainly rely on mechanical filtration. Depending on the type of filter, this filtration method keeps the water clear by straining, skimming, or trapping leaves, muck, algae, and any other form of debris. This helps to prevent clogs in other pond equipment as well as reduce the build-up of debris from settling on the bottom. When run through a mechanical filter, water will not be treated and will retain any toxins or harmful substances it contained prior to entering the filter. This type of filter is not recommended as the only source of filtration for a pond containing fish or aquatic wildlife. Mechanical filtration systems need to be regularly cleaned, at least once a week, to ensure that the filter is functioning well and is free from excess solid waste. Chemical filtration is more commonly used in aquariums, but some pond filter systems do use it. As the name implies, it uses chemicals to remove organic and inorganic pollutants with specialized media like carbon and resins, usually in a loose, bagged, or pad form. This method is usually used to manage ammonia levels or to remove any traces of medication or treatment used in the pond. Biological filtration removes toxins from your pond water and provides a safe and healthy environment for your aquatic wildlife. Biological filtration works by incorporating a filter in or around your pond that uses bacteria in order to break down toxins coming from fish, excess food, and decaying organic material. These types of filters break down the ammonia in the water into nitrite. Later on beneficial bacteria will develop, transforming the nitrite to nitrate, which are not as harmful to fish and are used by plants. Biological filters typically clean the water through mechanical filtration as well as treating the water and removing toxins. Many pond owners use only biological filters due to the dual filtration associated with this method. Ultraviolet Clarifiers are not really considered filters, but UV clarifiers are often used in combination with a filter or actually inside the filter itself. UV clarifiers are designed explicitly to tackle the problem of green murky water due to algae blooms. UV clarifiers kill floating algae, bacteria, and other microorganisms that flow through the clarifier and return clear, safe water back to your pond. Filtration systems include a filter and a pump. As mentioned above, filters are used to remove any unwanted solid particle that can damage your pond. Pumps, on the other hand, are vital for passing water through the filter. As a pond owner, you must first decide whether your pond will require complete biological filtration due to aquatic life or, in the case of a small decorative pond, simply require a mechanical filter. Filters There are many different types of filters. There are combination, external, and submerged filters. Combination filters are multi-functional and perform the duties of different types of filtration. For instance, a multi-filter may include sponge media that absorbs debris and an empty chamber to add

Now that we understand why filtration is important, let’s talk about the different types of filtration methods.. The right choice for your pond will be based on the size of your pond, water depth and volume, and the number of plants and fish that are present in it.. These types of filters break down the ammonia in the water into nitrite.. Biological filters typically clean the water through mechanical filtration as well as treating the water and removing toxins.. Many pond owners use only biological filters due to the dual filtration associated with this method.. Filtration systems include a filter and a pump.. When deciding between these two filter types, consider important factors such as pond size, plumbing, required electricity, and installation.. Water pumps are perhaps the most important piece of equipment for a good filtration system.. You should also become familiar with pump pressure and pump volume.. The filtration system is almost certainly the most important piece of mechanical equipment in your pond, so spending more on a system that is easy to maintain and of the best quality is to your advantage.

Need a pond filter? We show you the various types of filters and how to choose the right filtration system for your pond or water garden.

All types of pond filtration systems consist of a pond filter, filter media, a pond pump and pump tubing.. Another type of fish pond filter is an external filter.. The water that comes from the pond pump enters in this filter near the top and flows through filtering media products to the bottom of the unit.. This can be a great feature for most garden pond owners who do not have a large volume of fish.. This type of filtering system makes it convenient for most garden pond owners.. Fish Pond UV Filter. While not inexpensive, these pond filters work great at keeping your fish pond water clean.One important point to consider when installing the plumbing for your pond filter is if you should get a fish pond filter that has a UV in it, you will need to shut off the UV for a few days when you add beneficial bacteria to your pond.

A pond filter is one of the most important parts in a good backyard pond design. If you have fish, regardless of whether they’re koi, goldfish, or anything else, a good filtration system is critical.

One might say they were the first really good pond filtration system!. The Mechanical Pond Filter. These are most often used in very small ponds and those that do not contain fish.. By the term “biological” what we mean is that beneficial bacteria (a natural occurring critter) is provided a home in the filter and these good micro bugs help clean up any organic things in the water which includes both the solid material, and the unseen substances as well.. This helps create a safer environment for fish and can even help limited unwanted plant growth such as algae.. You may find some pond filter models that include a uv light along with a biological filter system.

Article from Koicare.com Koi ponds and koi keeping are gaining popularity in the U.S. and in many parts of the world. Koi ponds are as varied as the places they are found. Ponds can be deep or shallow, be natural or constructed with liners or concrete but no matter what form they take the filtratio

Biological filtration cultures aerobic (nitrifying) bacteria that will help break down the chemical components of fish waste.. The water flowing into the bottom drain will move into a settlement tank, which is then allowed to settle to the bottom of the tank while the surface water is sent towards the pump.. This filter helps remove more waste from the old water, ensuring cleaner water is then pumped back into the pond.. Skimmers are your other mechanical filtration system.. Floating debris will effectively be removed via the skimmer, but without it all things would ultimately make it to the bottom drain.. As a result, a pond owner needs both physical and chemical means of removing these wastes from the pond.. Additionally, those solid wastes come in different sizes and need to be filtered out accordingly therefore a good mechanical filter will have multiple stages.. until making its way to biological filtration.. To ensure this happens you need a pond with a large surface area and plenty of supplemental oxygenation via waterfalls, fountains, aquatic plants or diffusers .. The all-in-one systems like the Life gard Aquatics are often submersible units that have the mechanical filtration, biological filtration, UV clarifier and pump all in one compartment.. You’ll see a lot of different filtration systems with UV as part of the package as well as in-line UV sterilizers and clarifiers too.. Viruses and bacteria make up a large proportion of health problems in any given koi pond.

There are 4 methods of filtering pond water. Biological, mechanical, plants and chemical. Now i know it sounds technical, but its not! Once you understand these basics of pond filters, you’ll be able to build or maintain the perfect filter for whatever pond you own.

There are 4 methods of filtering pond water.. Once you understand these basics of pond filters, you’ll be able to build or maintain the perfect filter for whatever pond you own.. This is the most important element of pond filtration and occurs in every single pond.. Filtering the pond water mechanically is the second most important method of pond filtration.. The easiest and laziest way to mechanically filter your pond is to incorporate a pond skimmer.. Pond skimmers and filter pads or sponges are the best mechanical filters.. But if we incorporate pond plants in our filter strategy we can remove many of the nutrients.. It’s not a method of filtration i personally use on my ponds, as i find that if the biological, mechanical and plant filtration aspects of filtration are functioning chemical filtration isn’t required.. There is no one size fits all answer to pond filtration as every pond is different.

When one is in love with fishes, they keep hoarding more and more. Who can blame them; fishes are on

Making an outdoor pond is easy and simple.. Check out these 21 DIY homemade pond filter ideas that are complete with pictures and instructions to find the one that is right for your outdoor water feature needs.. 21 DIY pond filter ideas and tutorials:. There are lots of good tips in this video on how you can make a Cheap inexpensive DIY filter that is perfect for a small pond and quarantine system.. and you can make one for just about $100.. This DIY filter is built for koi fishes but you can use it for any type of fishes.. The things you need can be bought from any hardware store around you and also it uses a plastic barrel as a container, that is a brilliant idea for a DIY pond filter.. Here’s a system that can handle cleaning the water of a large garden or fish pond.. In this DIY pond filter, water plants and small fishes are the cornerstone.. Bioball DIY Pond Filter This unique ideas starts with a large flower pot and ends with clean water for your fish or garden pond.. This video is not a tutorial about how to create a filter but rather about cleaning one.. There is a super large pond with so many colorful Koi and there are fruit trees and vegetable planted around it.. In this video tutorial, he used simple and broken things to make this filter come happen.. It is a great step by step tutorial on building an outdoor DIY pond filter with cheap recycling materials.. A superb video for those who are passionate about keeping pond fish and now they can build their own filtration system using hand tools.

Yes, having a beautiful outdoor pond is super cool no doubt. You get to create this amazing looking landscape, complete with pond plants, some beautiful fish, and so much more. That said, ponds do require maintenance and cleaning, by which we mean that you do need a good filtration unit. If you do not have …<p class="read-more"> <a class="" href="https://pondpumpsadviser.com/best-pond-filter/"> <span class="screen-reader-text">Top Rated 4 Best Pond Filter (Ultimate Buyer’s Guide)</span> Read More »</a></p>

That said, ponds do require maintenance and cleaning, by which we mean that you do need a good filtration unit.. If you have a large pond, filled with plants, fish, and all, then you might be interested in a large and powerful pond filter such as this XtremepowerUS Koi Pressure Pond Filter.. This particular pond pump can handle up to 10,000 liters, or around 2,500 gallons of water per hour.. Yes, the whole filtration unit itself may be very large, and no, it doesn’t look very sleek, but it can definitely handle more than enough water per hour to keep a pond clean and clear.. FILTRATION The XtremepowerUS Koi Pressure Pond Filter is designed with 3 types of filtration in order to remove as much debris and contaminants from your pond as possible.. The durability of this particular pond pump is also quite high, not the best, but pretty good.. Now, we do think that the CNZ All-in One Pond Filter System is very durable, although with that said, it is small and the filter media will need a lot of regular maintenance.. Submerged – no need to disguise it Ideal for small ponds Adjustable flow rate 2 filtration types + UV sterilization Very easy to install Very durable. FILTRATION Something to keep in mind about the POND BOSS Filter is that it comes complete with both mechanical and biological filtration.. It does a pretty good job at filtration, although it is a small filter and cannot fit too much media, so it does need regular maintenance and cleaning, plus it cannot handle large ponds.. This large external canister filter can handle up to 2,500 gallons of water per hour, or nearly 10,000 liters.. FILTRATION The Grech CPF-2500 Pond Bio Pressure Filter is designed primarily as a biological filtration unit.. It comes complete with a very large capacity for bio filters, which means that it does a really good job at removing all sorts of biological contaminants from the water.. Others Now, the Grech CPF-2500 Pond Bio Pressure Filter is very durable, a heck of a lot of space one of the most durable options out there.. Very durable Easy maintenance and setup Great bio and mechanical filtration High flow rate + adjustable Cost effective

Do you need a pond filter, and if so, which one? We show you your options in this easy to follow guide.

Pond water often goes green, and the combination of a pond pump , pond filter and an ultraviolet clarifier can prevent the common problem of green water.. Pond fish also produce waste but are not equipped to live in their own waste, so fish pond filters can convert fish waste and prevent it from getting polluted.. There are two small negatives with box fish pond filters - firstly they are large, so may be unsightly if situated at the poolside and not hidden, and secondly, as they work via gravity, they need to be situated at the highest place in the system for water to return via gravity to the pond.. Just like box filters they contain biological and mechanical filter media, water is pumped to them by a pump in the pond, and models with built in UV are available to prevent green water.. Koi ponds are typically designed with large fish and large amounts of waste in mind, and are deep, with nothing to cause or collect waste in the pond like pond plants.. And unlike standard box and pressure filters, koi ponds are often run as gravity fed systems , with a bottom drain and surface skimmer built into the base and side of the pond, then a large filter is placed next to the pond, and pump and uvc are outside of the pond too.. Once in the filter waste is physically removed first, then treated biologically by lots of biological filter media, before a powerful external pump sucks water from the filter, pumps it through a UVC, then returns it to a pond.. All-in-one pond filters are only designed for small pond filtration however, and if used as the sole form of filtration in large fish ponds, they may fail to break down all the waste and keep the water clear, or they may clog up.. For koi carp, pond keepers often double the filter capacity again, so aim for a filter capable of filtering 6000 litres volume, for the above pond with koi.. There is no limit to the size of pond filter you put on your pond, and the larger the filter and UVC, the better your water quality will be.

There are many choices when it comes to filters. Here is a road map to help you decide what kind of system to consider, depending on what you are building, your customer’s circumstances, and preferences. Is one type enough or do you need more than one filter style to do the job?

And if your project is to build a koi pond then you better make sure to include plenty of biological and mechanical filtration.. These canister filters often have foam media functioning as both mechanical and biological filtration, but cleaning of debris may interfere with biological filtration.. These filters are usually small and require fairly frequent cleaning, but are a suitable add-on to small existing ponds or for very small ponds.. Models include Aqua Ultraviolet’s Ultima II and AquaDyne.. These pressurized filters are often used in koi ponds or heavily stocked water gardens.. Common media used in waterfall filters include plastic ribbon, bio-balls or filter mats.. Often made from a 55-gallon plastic drum or similar container, water is typically pumped into the bottom, then it up-flows though various possible filter materials allowing a mixture of mechanical and biological filtration.. The water should flow somewhat slowly though a heavily planted bog.. A bog filter is a great add-on to a koi pond.

Especially as the stocking levels of fish are much higher in a garden pond than in the wild, all ponds need a filtration system to keep the water clean, clear and healthy.

The numbers on filters normally indicate the maximum pond size they are able to filter, however you must be careful with this because these numbers usually mean WITHOUT fish.. You will also find that pond filters will list a maximum flow rate, this is the maximum rate of water per hour the filter can handle.. Too large a pump can overflow a box filter or blow the seals on a pressure filter, too small a pump will mean the filter is unable to efficiently filter the pond.. These filters are great if you want to hide the filter but require something a little more substantial than an underwater filter.. The issue with pressure filters is that they do need more maintenance than a box filter but not as much as an underwater filter .. These filters are probably seen as old fashioned but you can’t beat them when it comes to the sheer volume of water they’re able to filter and they’re not normally as expensive as the equivalent pressure filter.. The easy clean systems built into pond filters will normally use the water from the pond to clean the foams and then the dirty water, which contains useful nutrients, is sent into a flower bed.

I’m happy to take this opportunity to expand on what I wrote four years ago about undergravel filtration.

They were familiar with undergravel aquarium filters and felt that undergravel pond filters would behave in the same way.. Could this happen in a pond undergravel filter?. Of course, this is true with any pond using any type of filter system.. An advantage to having an undergravel filter is that debris is generally not an issue, unless it’s so large that it actually prevents the pump from being able to pull water through it.. Water will continue to flow through all areas of the filter, and the filter will continue to work as advertised.. The next logical question is, “Why doesn’t it build up enough debris to clog it up?” Simply put, in a properly constructed system, there should be sufficient space between the gravel so that debris continues to move and break down, eventually exiting though the filter.. It is a good idea to have another type of filtration system, such as a skimmer, that is designed to remove floating debris from the pond.. I would recommend a secondary filtration system for any outdoor pond, regardless of its primary filter system.. To meet these requirements, I designed the system with a submersible pump in a sealed box with an open pipe leading into it from half of the undergravel filter.. The output from this pump went to the other half of the undergravel filter as a pressurized filter.. Because the filter is in the pond, it can run without having to lift water above the surface of the pond.. If designed correctly, the filter should draw water from the entire bottom of the pond and bring it to the surface, where it can absorb oxygen from the air.. An airlift system was integrated by Magnolia Ponds (photo courtesy of Max Taylor).There are always going to be some who believe that undergravel systems promote the production of hydrogen sulfide.

Koi Water Garden offers a range of koi pond filters, koi foods, koi medications and other related dry goods

2) More importantly much of the solids that fail to be removed by the mechanical stages of your filter will be deposited in the biological part of your filter where they can clog the media, render the biological stages ineffective and cause the nitrifying bacteria to die - result - not only is your mechanical filter not working properly but this will therefore prevent your biological filtration working as well - not good.. Other mechanical filtration devices such as the pre-filter sieve, bead filters, filter brushes, foams and wadding all work by straining or sieving particles from the water and whilst they can all work effectively, they all require maintenance and/or will not filter out very fine solids.. This is because with pump fed filters, the in pond pump is picking up solids from the pond and turning this into an 'organic soup' before depositing this into your filter, thus giving the mechanical part of your filter a much more difficult job to do in terms of removing solids from the water.. Biological filtration is actually a much simpler proposition than mechanical filtration, and if we assume that the mechanical part of your filter is working effectively, clean water, devoid of most of the solids will be passing into the biological stages.. In order to ensure the biomass has an adequate supply of oxygen, air should always be pumped into the filter, by placing air stones under the media , on the filter grids and air introduced by way of an air pump.. last updated 10th April 2017 At Koi Water Garden, we are able to offer competitive prices on not only high quality koi, but also on koi related goods such as complete filter systems, Vortexes and filter media.

Keep your pond clean with the best pond filter to remove debris and algae. Learn what you need to consider and see the top picks in this buyer’s guide.

BEST OVERALL: CNZ ALL IN ONE Pond Filter System RUNNER UP: Danner 12-Inch by 12-Inch Mechanical Pond Filter AFFORDABLE FAVORITE: TotalPond Universal Pump Filter Box PERFORMANCE PICK: Goplus 4 in 1 Pond Filter Pump BEST FOR SMALL PONDS: Aquagarden Water Pump for Ponds BEST FOR KOI PONDS: Aquascape Submersible Pond Water Filter. Whether the pond is a DIY pond or created by professionals, selecting the best pond filter depends on the characteristics of the pond as well as the user’s preferences.. Filter types include: pond skimmer, prefilter, pressurized filter, waterfall filter, and UV sterilization.. Easy to use, these filters must be retrieved from the bottom of the pond for cleaning, filter changes, and other maintenance.. External filters, which sit outside the pond, use pipes to remove dirty water and cycle clean water back to the pond.. When installing a pond filter, set the correct water flow rate for the filter.. CNZ’s pond filter kit, a good choice for small- to medium-size ponds, comes with all the components required to keep a pond clean, including the pump.. This Danner pond filter’s carbon and polyester media uses mechanical, biological, and chemical filtration to clean pond water.. TotalPond’s submersible pond filter, designed for ponds with a 500-gallon maximum capacity, deploys layers of filtration to keep water clear.. The filter has a coarse foam filter to catch debris and also three additional filter baskets, all of which help keep the pond water clear.. Aquagarden’s pump uses three stages of mechanical filtration to clean pond water: a coarse filter foam, medium filter foam, and a polymer wool filter pad.. Koi require properly filtered water to live long, healthy lives, and Aquascape’s submersible pond filter can keep koi ponds of up to 800 gallons clean.. Depending on the pond’s volume, it can take a few days to a couple of weeks for the pond water to clear up once the pond filter is installed.

Discover the best pond filter for small ponds. This guide shows everything you need to consider before getting a UV pond filter.

Fish pond filters are the most important element to have healthy growing fish in your pond.. Best UV Pond Filter: VIVOHOME Pressurized Biological Pond Filter Best Garden Pond Filter: Aquagarden Water Pump for Ponds Best Koi Pond Filter: Oase BioSmart Pond Filter Best Small Pond Filters: POND BOSS Filter Kit with Pump. Pond filter for a garden pond.. UV pond filters are the best water purifiers when there are fish in your pond.. When pond water is treated with a UV pond filter, it increases the number of beneficial bacteria in the pond which helps in cleaning and evading of the harmful bacteria in the pond.. You can install a UV pond filter in your pond.. An automatic UV pond filter will indicate when the pond requires cleaning.. Look for the UV range as it decides how smoothly your UV pond filter will kill harmful bacteria and clean algae from the pond to keep your fish and plant healthier.. To wash the water of the pond contemporary enough for the fish and alternative water plants, garden pond filters are used to clean the dirt and other contamination from water.. Robot garden pond: The first type of garden pond filter is a robot that pumps water through the filter that strains mess present in it.. UV garden pond: The second sort of garden pond filter is a UV device.. It there’s no rearing of fish within the pond and it has water plants; it will not require any garden pond filters.. A Koi pond is not similar to a garden pond other ponds with other types of fish.. When it comes to design an electronic filtration system for a Koi pond, you can fix an in-pond, down-flow filter, out-pond up-flow filter, or out of the pond downflow biological filter.. They purify the pond water with the help of UV rays which kill harmful bacteria in the pond water.

DIY pond filter design ideas will be very useful to people who want to have a garden pond or a koi pond and enjoy their water feature. A garden pond

Why do you need a pond filter?. When you are not able or you are not willing to buy it, you can opt for a DIY pond filter design and make a filter system on your own.. When you plan to a DIY pond filter design, you need to know that mechanical filters require regular maintenance and have to be cleaned at least one a week.. Whether you opt for a DIY pond filter design or you buy a filter system, the type will depend on the size, the layout, accessibility and maintenance of the pond.. Where to place the pump?

I want to show you how to make a small pond filter that takes care of both mechanical and biological filtration. Let’s get started on this great pond filter.

I have a large filter system on my Koi pond already so am going to use this after the skimmer and UV clarifier to filter out some of the finer particles in the pond.. This box filter holds about 16 gallons of water so would make the perfect filter for a small pond or water garden.. When starting our pond filters are a must-have to help balance out your pond water.. Some of the best pond filters on the market can do a great job but also cost you a small fortune, plus there are so many options out there that your head would melt trying to figure out the best filter for your pond.. You also need pond filters that can cope with the waste load in your pond.. One issue we see all the time is the pump is either too weak for the filter system and too small for your ponds or it’s too powerful and moves the water too quickly before the filters can do their work.. The whole idea of a pond filter is to provide mechanical and biological filtration and to clean your pond water.. When a pond is new it is advisable to install some sort of pond filter.. Pond filters, especially ones you buy are all rated based on the size of your pond.. You could have a pond of about 500 gallons and when you go online you will find a pond pump and filter combo with a built-in uv clarifier that is rated for ponds up to 500 gallons.. If you have a small pond, water garden or water feature then you may opt for a submersible pond filter that you can hide out of the way.

Getting your aquaponics system right takes time. However, it is worth making an effort to get your aquaponics filtration system right from the first time. Your reward will be a good quality yield of healthy crops with minimal intervention from you. The volume of your growbed will be big enough to break down these solids given: You use worms Distribute the

Getting your aquaponics system right takes time.. However, it is worth making an effort to get your aquaponics filtration system right from the first time.. If you are using a growbed system with a density lower than 1, you don’t need additional solids filtration.. Get Started with Aquaponics. The motion of the water will create a swirl or vortex, and given enough time (retention time), the solids will settle at the bottom, and the clean water will exit from a pipe at the top.. A clarifier is a solids separator that uses time to let the solids settle at the bottom.. Solid filters filter out the suspended solids as well as the settable solids.. Bird netting as suspended solids filtration in the UVI system Screen filtration of Sieve filters is a method that is not widely used in aquaponics.. The water will flow over the screen, and the solids will stay on top while the water will drain to the other side.. If you are not sure about the quality of your fish food or the filters, take a look at the roots of your plants.. Get Started with Aquaponics

Your pond has the "pea soup syndrome"? A UV pond filter is a great solution to your problem. This article outlines all the basics & essentials you need to know before you buy one.

You still need a filter along with it.. So from now off on in this article, we’ll be referring to these UV pond filters as “UV pond lights”.. The obvious: The uv light is placed inline with the pump and the filter (either a mechanical or biological filter).. In fact, a lot of the biological filters (that have a uv light built in) place this uv light after the filter itself.. Any small rocks being sucked up by the pump and transported to the uv light can harm the quartz sleeve around the bulb.. Obviously, you need to clean the (mechanical or biological) filter from the waste, debris and dead algae.. So, it’s a good idea to clean this every year or so.. UV lights kills algae because water, with the free floating algae in it, passes over the uv lamp.. Some of these uv lights are submersible, and can be used under water or out of the pond.. My suggestion is to avoid looking at the light directly (even through the viewing window), avoid spending a lot of time looking for the blue light during the day (when it’s harder to see the light), and even use sunglasses to be on the safe side.

Here are five easy steps that walk you through choosing a filtration system for your saltwater aquarium.

Fortunately, there is a fairly simple method for selecting the right filter system for your tank.. You'll either choose a filter with a sump or one without a sump.. Models for everything from pumps, to wet/dry filters, to protein skimmers, to heaters, to algae, live rock and denitrators which have been designed specifically for sumps can be found.. If you have a basic idea of which types of filters you will using in your sump, you can get a feel for how much each filter will cost and what models will work for you by reading reviews reading reviews and compare prices on in-sump protein skimmers , a build-your-own wet/dry filter , submersible heaters , and submersible pumps (powerheads) .. Some equipment (pumps, skimmers, canister filters, UV filters) can be placed outside of the tank, connected to the tank with various hoses, pipes or overflows.. If you don't want to have a sump and you want to keep your tank (inside and out) as uncluttered as possible, remote mounted equipment may be the ticket for you.. Many In-Sump Protein Skimmers can be easily adapted.Most Canister Filters are designed to adapt easily for remote mounting.Many of the Combination Wet/Dry systems can be adapted, also.. Protein skimmers, water pumps, wet/dry filters and overflow supplied equipment can be found in a variety of styles, made by a number of manufacturers.. The types of equipment which can be mounted or used inside the tank is somewhat limited.. However, there are a number of filtration systems which are designed to use only In-Tank equipment and materials.. Here's the next fork in the road: Hang-On-Tank equipment vs In-Tank equipment.. Relying solely on In-Tank equipment limits your options for filtration equipment somewhat.. The Live Rock / Berlin Systems and the Live Sand Filtration & Jaubert or Plenum System setups have been around for quite a while and are among the favorites used by reef system purists.

If you have a Koi pond or would like to start one, or create a stunning water feature, we review the best pond filter as it is a very necessary component.

OASE BioSmart 5000 Pond Filter TetraPond Water Garden Pump POND BOSS Filter Kit with Pump (Our Top Pick) Waterscapes International BF1250 Pond Filter & Waterfall Spillway Goplus Pressure Bio Filter for Pond. A high-quality filtration system will remove algae from the surface of the water so that your pond or water feature will continue to have crystal clear water.. The type of filter you choose will depend on the size of your pond, whether it is small, medium, or large.. They provide both mechanical and biological filtration and they can be placed at water level or under the water’s surface.. The OASE BioSmart 5000 Pond Filter works on a dual mechanical and biological filtration system to maintain clean water and break down any build-up of organic waste or harmful bacteria that could be harmful to your plants or fish.. If you want to create a beautiful waterfall feature while also keeping your pond crystal clear and bursting with healthy aquatic life, the TetraPond Water Garden Pump is a great choice and it comes at a very affordable price.. Pros Very affordable price Great filter for a small pond Superior mechanical and biological filtration performance Creates a natural-looking waterfall Easy-to-assemble Efficient design. Whatever type of water feature you wish to create, either a stunning foundation or a Koi pond, the waterfall filter gives you superior biological filtration and it is the perfect choice for medium-sized ponds or water gardens with 2,000–3,000 GPH pump flow.. Pros Ideal for a small pond or water feature High-quality filter Creates a beautiful waterfall Easy-to-assemble Filter keeps the water very clean Lifetime warranty. The pressure filter comes with all the necessary fittings (except the tubing) and it is compatible with a 1,200 GPH pump.. Pros Good value for money Designed for small to medium-sized ponds Very effective at killing algae Filter is very easy to flush and clean Keeps the water crystal clear Creates a healthy environment for Koi fish


2. POND FILTERS - 3 Main Types
(Webb's Water Gardens)
3. 04 How to Design Your Dream Pond Filtration System
(Practical Garden Ponds)
4. Beginner's note on the Basic Koi Pond setup - The Pond , The Filter and the Pump 錦鯉池基本設備
(Charlotte Koi Club)
5. DIY pond filter system| How it all works
6. Best Pond Filter System (Waterfall Filter Boxes)
(The Pond Advisor)

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