10 Best Koi Pond Filters – [Reviews & Guide 2018]

Best Pond Filters – Buyer’s Guide

Best pond filter can be a very useful thing to buy if you want to purify the water of your water pond to keep the environment of the water fine. Water goes through the UV ray and this is why the water will be out of bacteria which can be beneficial for the fish which you have kept inside the water pond.

TetraPond Bio-Active(Editor's Choice)1500


2500 - 4500

2500 - 4500

2500 - 4500
Yes Check Price
Pondmaster PMK190
200190 -Check Price
Best Choice Products 4000 Liter Pressure Bio Filter2500Max 4000YesCheck Price
Jebao CF-101000



790 (pump incl.)
1000 - 2500

1320 (pump incl.)
2500 - 3500
YesCheck Price
XtremepowerUS 10000 koi Pond Pressure Bio Filter4000Max 4000Yes Check Price
Pond Boss FM002P500320 (pump incl.) -Check Price
TetraPond Clear Choice Biofilter PF-1500-1200325 - 550 - Check Price
Jebao PU-368800Max 4400YesCheck Price
OASE BioSmart 50005000

1600 - 2700

1600 - 3600
- Check Price
TetraPond GreenFree UV Clarifier



Max 330

Max 900

Max 2200

Max 4400
YesCheck Price

1. Tetra Pond Bio-Active – Best For Koi Pond

Tetra Pond Bio-Active Pressure Filter review

This pond water filter can be used to remove  both organic and non-organic toxins  of the water to make the pond water absolutely clean.


Both biological and mechanical filtration is available and ensures healthy and clean pond water.

You will get Back-flush valve for the quick cleaning.

Because of the Bio activators, there is a large surface area in the filter. It provides unrestricted flow of water which helps in better cleaning.

Integrated UV clarifier is also there for getting the ultimate control for the suspended algae.

This filter is perfect for the ponds carrying the water of 1500 gallons.

Many of the customers have experienced flooding of the bulb with this pond water filter.

2. Pondmaster PMK190 – Best All in One Pond Filter

Pondmaster PMK190 190gph Pump and Filter review

 With both the mechanical and biological filtration system  this pond water filter can be extremely useful for any size of the pond.


The best quality material is used to ensure that the users can get the excellent aquatic supply.

This best pond filter will ensure the best quality environment for the pond by purifying the water completely.

The design is perfect and the quality is supreme.

You will get water bell head along with the filter and pump.

Both biological and mechanical filtration is available with this filter.

In the case of the liner there is a warranty of fifteen years. Two years of warranty is available for the other components.

Most of the users have got crystal clear water using this filter.

The pipe which makes the attachment of the pump with the filter is not having any thread. As a result, water pressure created by the pump pushes the connected pipe straightaway.

3. Best Choice Products 4000 Liter Pressure Bio Filter – Best Pond Pressure Filter

Best Choice Products 4000 Liter Pressure Bio Filter review

If you are in need of a  UV filtration process  then this pond water filter will be one of the best choices for you.


This filter includes outlet and inlet hose adapters, UV lamp indicator, UV clarifier of 13 W and many features to ensure the best-purified water into the water pond.

Up to 12000 liters of water can be filtered easily by this water filter. You will be able to maintain the filter quite easily. All its components can be removed easily and it takes a few minutes to install it again.

The filter is durable and it can sustain extremely hot water wave also.

It is completely a biological filter and will purify the pond water in the most efficient way.

There is no fix for GFI tripping.

In case of the electrical short circuit there is no way to fix the problem as the transformer is inside the plastic cover to get protected from water.

4. Jebao CF-10 – Best For Small Pond

Jebao CF-10 Pressured Pond Bio Filter review

This is a perfect pond water filter  to provide a healthier environment in the pond . It is best for medium and small size ponds.


The dual filtering system is available with this Koi Pond Filter and it ensures a healthier and clearer pond.

It can clean the ponds containing water of 1000 gallons.

Back-wash feature is there in the filter.

Both outlet and inlet piping is available with the filter kit.

The leakage problem seems to be the most common problem faced by many customers with this filter.

5. XtremepowerUS 10000 koi Pond Pressure Bio Filter – Best External Pond Filter

XtremepowerUS 10000 koi Pond Pressure Bio Filter review

If you are searching for a pond water filter  to remove debris from a large pond , then this filter come into your work.


Being able to purify 10000 liters in every hour this filter is capable of handling 4000 gallons’ water pond.

With 13W UV light this filter can ensure the best filtration of water.

Cleaning the debris of the filter is also easy and you will only need to do the same once or twice in a week.

Because of the flaw in design clean outline is required to be plugged when it is not used.

The knob between the normal and clean operation does not work fine all the time.

6. Pond Boss FM002P – Best Pond Pump Filter Combo

Pond Boss FM002P Filter Kit review

The operation of this filter is extremely easy. So, you will get a very smooth experience of cleaning the debris of your pond water by this filter.


It is one of the eco-friendliest filter kits.

It is extremely energy efficient.

The operation is quiet and simple.

It is earth friendly.

If you buy the combined set you are going to save some money as well.

You will not find any adjustment for a sprayer and a great amount of spray is done in the air only.

7. TetraPond Clear Choice Biofilter PF-1 – Best Small Pond Filter

TetraPond Clear Choice Biofilter PF-1 review

If you want an efficient pond water filter for which maintenance will not be a problem, then this is the perfect option for you.


Maintenance and accessibility are extremely easy with this filter.

It has the mechanical sponges for pre-filtering and it ensures the removal of suspended debris. It helps better purification of water.

Because of the bio ring media, the filter has a huge surface area and it contains effective aerobic bacteria.

It can be used for the water gardens of 1200 gallons and for the water ponds of 500 gallons.

This filter has the leakage problem which you may face if you change the filter pads.

8. Jebao PU-36 – Best For Fish Pond

Jebao 36W Aquarium Koi Fish Pond review

This pond water filter can be the most appropriate option for  permanent cleaning of debris  from pond water.


This Koi Pond Filter ensures permanent elimination for the Algae bloomy and this is why you will get the definite solution of the green water.

It can provide you with the most efficient sterilization effect with the best in-line installation.

For the most perfect performance you will need to replace UV bulb only after 6 or 12 months as per your necessity.

For the most perfect performance you will need to replace UV bulb only after 6 or 12 months as per your necessity.

9. OASE BioSmart 5000 – Best Large Pond Filter

OASE BioSmart 5000 Pond Filter review

This is one of the best pond water filters with the incredible features of cleaning debris in the quickest time possible.


With the feature of distinct zones, it does the best settlement of various beneficial bacteria.

The cleaning mechanism is built in and this is why no manual work is required for cleaning.

The filter is extremely user-friendly because of the features like sludge drain, temperature gauge and cleaning indicator.

It can do great for the pond till 5000 gallons.

There is a trap door attached with this filter and sometimes it can cause a huge amount of leakage.

10. TetraPond GreenFree UV Clarifier – Best UV Pond Filter

Tetra Pond GreenFree review

If you have a big size pond and you are having  problems with the green algae , then you can surely use this pond water filter.


It can make your pond completely clean and clear and it can make the pond free from any green algae.

Within only five days this device is capable enough to clean heavy algae from water pond.

This device is designed in such a way that it can clear algae from 8800 gallons of water quite easily.

There is a frequent problem with the electrical portion of this unit.

Buyer’s guide – choose the best pond filters for your need

Best Koi Pond Filters and Pumps - Buyer’s guide

If you want to purchase the best filters for your water pond it is extremely important to have the idea about the size of the pond. You should surely check whether the filter has the capacity to clean the amount of water which you are having in the pond.

You should also check the health of the water. Some of the filters are capable of only doing the mechanical cleaning.  So, if you have problems of biological bacteria in your water pond that water filter will not be perfect for you. 

You should always go for those pond water filters which are energy efficient. It should also have the different layers of purification which will ensure that both bigger and smaller size debris can be cleaned from the pond.

The pond pump filter should be made of quality material so that you can use them for a longer time without changing its components. The technology of cleaning should be perfect so that it can clean the water in quick time.

Cleaning of the filter can be another headache. So, you should purchase those filters only with which maintenance will not be a problem.

Pond filter types

Generally, there are five types of Pond filters available in the market.

  • In pond pre-filters
  • Skimmers
  • Pressure Filters
  • Waterfall filters
  • UV Sterilizers

Some of them have only mechanical or biological purification process. Some others have the combination of the two. So, as per your own requirement, you can choose the best one for you.

In Pond Pre-filters:

 It can be used for small ponds.  It does mainly mechanical filtration. Ponds with a heavy stock of fish should not be cleaned with such filters.


 This can be used for ponds of any size.  It can do both mechanical and biological filtration of a water pond. However, for a heavy amount of biological filtration you may need to add extra biological filtration kit with it. It helps to collect the bigger size debris on the surface of the water pond.

Pressure Filters:

 It is best for the medium or small size of ponds.  This pond pump filter is a mechanical filter. It can be used along with the skimmers. This kind of filter is capable of purifying small debris.

Waterfall filters:

This type of filter can be used for a pond of any size. However, it is the best for medium and small size ponds.  Such filters provide the best biological filtration. 

UV Sterilizers:

It can be used to clean the green water from medium and small size ponds. It can also clean the waterborne bacteria and viruses. If you have a pond  with large number of fish , then this device can come extremely helpful.

Benefits of a Pond filter

Pond filter system is mainly required for those ponds where you have kept fish, turtles or any other water animal. It mainly helps in keeping the water of the pond clean so that the creatures you have kept in the pond can stay safe.

  • A pond filter adds the beneficial bacteria into a water pond. These bacteria destroy the invisible toxins in the water. These bacteria break down the Nitrite and Ammonia in the water. It transforms Nitrite into Nitrate. This nitrate can be absorbed by the plants in the water pond. The environment of the water pond becomes improved and it is good for the fish you have kept in the pond.
  • The skimmers can help in cleaning the larger debris on the surface of the water. It collects such kind of debris and then helps it for the easy removal. So, this larger size debris doesn’t get a chance to sink down and getting decomposed.
  • A pressure filter can help a lot to remove the green algae from water. It makes the water crystal clean which is just the best for the health of the fish inside the water pond.
  • With the help of UV sterilizers even the small size particles inside the water pond can be removed. Thus the water will become crystal clear. The fish inside the water will be fine and you can even see them from outside. It increases the beauty of the pond.

Features of a pond filter

  • It will depend on different types of pond filters. UV pond filters will have the UV sterilizers which have the ability to work to the microscopic level by cleaning the invisible biological toxins of the water.
  • It can have adjustable fountain heads. Some of the pond water filters will also have the magnetic drive.
  • Bottom drainage feature can ensure the removal of the debris which falls on the deepest level of the pond. This feature will not allow the debris to be decomposed in that low level.
  • Most of the quality pond water filters will have the easy maintenance features. The components of the pond filter can be easily removed and at the time of installation again it should not take too much time. It will also help in cleaning the water filter easily.
  • Backwash feature is also a crucial feature in the pond water filter. This feature will help in removing the collected debris out of the pond easily.
  • Presence of mechanical sponges will help in purifying the small components present in the pond water.

If you are a lover of keeping fish and other water animals in your pond water or garden water, then you need to ensure that the water of that pond remains safe and healthy. Using a Pond water filter can provide you the surety of best quality water.

You should surely check the size of the pond, the volume of water to be purified and the number of fish or other water animals you have kept to buy the best pond water filter.

By choosing the best Pond filter system you will be able to keep the pond crystal clean. It will not only help you to keep the fish, turtle or other creatures healthy but the visibility of the pond will make it much more beautiful. You will be able to see the fish playing in the water. Choose the best pond water filter which will have both the features of mechanical and biological filtration.

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