8 Best Pond Filter Systems of 2023 [Reviewed & Buyer’s Guide]

Of the many things that go into taking care of a pet, the most important is providing an environment that is natural to it. Buying the appropriate food, providing them with quality water, and ensuring that they don’t feel away from home are some essential indicators of the right environment. Like other animals and pets, the environment is especially important for fishes too. For fishes, a tank or a pond is their home, they are likely to spend their whole life there. Water is essential for the chances of fish’s survival. Since a fish will spend its entire life in a water tank or a pond, cleaning it is a must. Water filters are the best way to clean the water of all impurities and to maintain the health of any fish or plant that it contains. Since a water filter plays a crucial role in the safety and well-being of the features found in the pond, you need to find the best pond filter system for your pond or koi.

Best Pond Filter Systems

Here’s the list of the 8 best pond filter systems to help you make an informed decision and ensure your pond remains a thriving haven for aquatic life.

1. Tetra Pond Bio

This filter has all the great features that most other pond filters possess. Adding to the product’s quality mechanism is the presence of the backflush valve which makes it easier for you to clean the filter. The product uses both mechanical and biological filtration to clean the water of your pond. The UV clarifier assists the filter in getting control of the algae in the pond. The filtration system has an impressive capacity of 1,500 gallons and can clear the water while getting rid of the waste without a problem. The main problem with the filter, however, is that it does not come with a clear set of instructions. Especially in the case of the backflush valve. If this is the first time using one in a pond filtration system, you are in for a lot of mess because the instruction manual is not of much help.

2. OASE BioSmart 5000

If you are just starting out and fish farming is something relatively new to you, then this pond filtration system is the thing you need. Easy to understand and use there are a lot of beneficial features that you can expect from the pond filtration system. Setup and maintenance are two of the things that users find challenging to keep up with. While most pond filtration systems are inconvenient, the BioSmart 5000 has a simple setup process and requires a minimal amount of maintenance. The filtration system has a built-in cleaning mechanism that allows the user to use it for long periods without worrying about the hassle of cleaning it. The pond filter can potentially filter medium to large-sized ponds and considering the affordable price it has, it is definitely well-equipped. One negative aspect of the product is that it is unavailable to wider audiences currently as it is only shipped in the U.S. at the moment. If you live outside the U.S., you are out of luck since you cannot use the pond filtration system.

3. Jebao CF-10 Pressured

This pressurized external filter is for ponds up to 1,500 gallons with plants only. If you have a goldfish in your pond circling around a few plants, then it can the Jebao CF-10 can filter up to 1,000 gallons. However, if you have a pond with a large fish such as the koi, then it can deliver up to 500 gallons for a pond. The performance of the filtration system is further enhanced by the use of quartz glass by the manufacturer. While ordinary glass reduces the penetration of the UV light by 90%, Quartz glass ensures that most of the light reaches the life below the water. The filter also successfully manages to keep the water as close as possible to the UV lamp while even slowing the flow of water as it passes through the clarifier. This further enhances the penetration of the light. The well-designed purification system in the filter has an indicator responsible for signaling the need for cleaning.   

4. Pond Boss FM002P

If you are looking for a submersible filtration system, then the FM002P from Pond Boss looks after your needs. The submersible filter combines mechanical and biological filtration for ponds up to 500 gallons. The filtration system which is both energy-efficient and eco-friendly has a sloping lid on the case that keeps the debris from accumulating on the top of the filter. The mechanical filtration system of the product consists of two pads; one is responsible for capturing larger particles while the other captures smaller, more minute particles. The system of the sloping lid and the pads in the mechanical filtration reduce the required maintenance while increasing the longevity of the product. The kit also comes with a compatible fountain pump, a water spray nozzle, and a diverter that allows the user to create numerous water displays. The easy-to-install filtration kit gets your pond up and running in a matter of minutes, while also providing you with an attractive fountain to look at.

5. Tetrapond 26596 Waterfall

The waterfall attaches itself to a submersible or external pump which helps in the creation of a 12” waterfall enough for ponds up to 1,000 gallons. The product provides both mechanical and biological filtration, although the media that supplies biological filtration is not included with the pump. The filter helps you in choosing between lava rock or bio activators, both of which can be purchased separately. Although bio-activators are the talk of the town, today lava rocks are the more traditional choice.  Both the filtration mechanisms help in improving the nitrogen cycle of the pond. As beneficial bacteria colonize both, it turns toxic nitrates harmful to the plant into nitrates that nourish the pond.   In addition to providing an attractive look and sound to your pond, waterfalls also aid in increasing the aeration of the water. Pumps need a flow rate of 500 gallons to 4,500 gallons per minute to create this waterfall. The addition of a few rocks blends the easy-to-install system perfectly with the landscape.

6. TetraPond Filtration Foundation Kit

This kit is one of the few filtration mechanisms that use a submersible pump, and coarse and fine pads for mechanical filtration.  The product is also known for using a fountain assembly with three heads to create three different fountain shapes while using a diverter valve and swivel adjuster to level the fountain heads. A knob at the fountain controls the width of the fountain as the pump provides a flow rate of 325 gallons per hour. The flow rate is sufficient for ponds up to 250 gallons as you can choose a variety of fountain types from the list available. Fountains are also responsible for adding additional aeration to the water of your pond.

7. The TetraPond Submersible Flat Box Filter

As the name suggests, the product offers mechanical filtration of coarse and fine particles for ponds that contain up to 500 gallons. The filter box also has sufficient room to add biofilters. The filter works perfectly with flow rates between 200 gallons per hour and 2000 gallons per hour. You can easily detach the filter from the tubing for removal from the pond for cleaning.

8. Grench CPF-2500 Pond Bio Pressure Filter

Completing the list is the Grench Bio Pressure Filter. In addition to having great potential, the features of the filter make maintenance of the filter very convenient. Unlike other filtration systems, the Grench CPF-2500 simplifies cleaning with the help of a quick-handle cleaning system and numerous methods of filtration. The filter also has both mechanical and biological filter chambers that aid in extra filtration. This allows you to get double the amount of filtration for the price of one. The filter is responsible for creating bacteria that get rid of ammonia and nitrite in the pond. With the removal of these harmful substances, your fish can now enjoy clear and healthy water. The filter can clean up to 900 gallons of water which includes a reasonable amount of koi in it. The filter can also clear 1,600 gallons in a decorative pond. The filter, however, does not come with a pump, which means you have to pay an extra amount to add it to your filtration kit. If you want a filter that is ready to use instantly, this is not the filter that we recommend.

Buying Guide For The Best Pond Filter System

Now that we have seen the best pond filters, it is essential to lay the guidelines for finding a pond filter that suits your needs the best. For all pet-related items, you need to be very precise with your choice. Pets, unlike humans, cannot share or communicate their disapproval of a particular product. While other animals such as cats and dogs do drop hints, fishes have no means of communication. Therefore you need to be aware of pond filters that appear to be a good fit but are not. Here are some of the crucial factors that you need to consider before choosing a pond filter.

Pond Size

First and foremost is the size of your pond. The size of the pond determines the type of pond filter you need. Small ponds are generally 1000gallons while medium ponds can hold water up to 2000 to 5000 gallons. Any pond that holds more water than 5000 gallons is large. To find the proper size of the pond and eventually the water filter, you need to find the volume of the pond. The following formula helps you in doing so. Volume= Length x Width x Height Multiplying the length, width, and depth of the pond will give you the volume in the length of the pond. Let’s assume by doing so you get an answer of 40m (cubed), to get the actual volume of water don’t forget to convert the metric into liters. Multiplying 40 by 1000 will give you the volume of the pond, which in this case is 40,000 liters. However, this result is still not the actual representation of the volume of your pond, one crucial factor the simple formula does not include is the fish in the pond. According to experts you need to double the amount when you get fish and quadruple it in case you have koi fish. Since koi fish produces more waste and has a weaker immune system than most, you need a filter that is strong enough to clean the water extremely well.

Types of Filter

The next thing that you need to look after is the type of filter you need. A filter depends directly on the size of the pond. The other factor that affects the type of filter you need is the electrical resources you have at your disposal. An inline filter works on land and needs an electrical source nearby with which it can connect. If however, you feel that a filter on the outskirts of the pond will damage the serene view of the pond then you need a submersible filter. A submersible filter remains underwater and hidden and is generally quieter than the other forms of pond filters.

Amount of Fish

The density of the pond and the fish within will affect the performance of the filter. If you have a small pond that is home to a lot of fish, then you need an active filter. Some filters use the help of modern technology to estimate the amount of fish they can handle. This is where your calculations and math need to be spot on. You need to ensure that the filtration system you get can face the challenge ahead.

UV Filter Option

Another important feature crucial to the type of pond filter you choose is UV lighting. A filter that has UV lighting includes a fluorescent tube that shines UV light into your pond. The lighting helps the algae in the water to clump together, hence making it easier for the filter to catch it in the cartridges. You can choose a filter that comes with the lighting or one with separate light attached to the main filter box. These four factors, combined together, lay the foundation for some of the best pond filtration systems. When looking for any filter, these are the factors that should be in the back of your mind, which are detrimental to the health of a fish.

Conclusion

Finding the perfect filtration system can be challenging for a user because of the information and the selection that goes into it. Researching the filters can take time, but it definitely is worth it. Doing so allows you to find the one that fits within your budget and is ideal for both you and your fish. Ready to know the best options for you? Let’s dive in! The OASE BioSmart 5000 is an ideal option for those who are new to fish farming or have medium to large-sized ponds. With a built-in cleaning mechanism and minimal maintenance required, this pond filter lets you enjoy the beauty and benefits of your pond with ease. Jebao CF-10 Pressured is a good option if you have a pond with plants and a moderate fish load, or if you value an integrated UV clarifier. The use of quartz glass ensures maximum UV light penetration, enhancing the performance of the filtration system. And finally, the Tetra Pond Bio is the right choice for those looking for a pond filtration system that offers a powerful combination of mechanical and biological filtration and has an impressive capacity of 1,500 gallons. Although it has some issues with the instructions and backflush valve, it is still a highly efficient filter for the price point. Related Articles 6 Best Pond Vacuum Cleaners