Best 4 Bead Filters (Review) + Readers’ Questions Answered

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Lush koi pond with vibrant fish among water lilies, likely maintained by hidden bead filters for clarity.

Koi fish beautify our ponds and water gardens. But it’s our responsibility to keep the koi happy and in good health.

Apart from feeding them, we have to keep the water clean and with the right chemical balance. That’s where a quality filtration system, such as a pressurized bead filter, is required.

Since there are many bead filters on the market, you need to find the right koi bead filter.

We decided to make your work easier by choosing the best six-bead filters on the market. But before you pick a bead filter, you should consider the size of your pond.

The bead filters that we’re looking at have a proven track record and excellent features that will help your koi flourish. Read the entire review to find out the best and most ideal pond bead filters for your koi pond or water garden.

Table showing the best bead filters:

  • Aqua Ultraviolet II 2000 Bead Filter

    Aqua Ultraviolet II 2000 Bead Filter

  • Bubble Bead Filter The Original Bead Filter: AST's Pond Filtration Solution

    AST Bubble BBF-XS2000 Bead Filter

  • EasyPro Pond Products Agricultural Pond Bead Filter

    EasyPro Pond Products Agricultural Pond Bead Filter

  • Aqua Ultraviolet Ultima II 6,000 Bead Filter

    Aqua Ultraviolet Ultima II 6000 Bead Filter

  • Aqua Ultraviolet Ultima Ii 2000 Bead Filter

    Aqua Ultraviolet II 2000 Bead Filter

    What We Liked Most About This Product

    We start with the Aqua Ultraviolet Ultima II 2000 bead filter. This is one of the most popular bead filters on the market. It is ideal for small ponds as it comes with a 2000-gallon capacity.

    Therefore, it is best suited for a 1000 to 2000-gallon pond capacity.

    The most exceptional feature of this reliable bead filter from Aqua Ultraviolet is its tubular media design with the highest surface area on the market.

    As a result, the large surface area makes it ideal for the growth of beneficial bacteria. That’s why it offers effective biological filtration.

    Product Overview

    Besides, the Aqua Ultraviolet Ultima II 2000-gallon bead filter is made of a durable tank that will last for several years.

    Furthermore, it is easy to use with the top-mounted valve to activate a gentle backwash. Simply rotate the valve to perform the backwash.

    With this function, you won’t have to struggle to clean the filter. Also, you will not interrupt the filter as you don’t have to open it during the cleaning process.

    Boasting the tubular media design is vital in growing the bacteria responsible for breaking down fish, thus, creating a safe, healthy environment for the fish to flourish.

    However, the bead filter doesn’t come with a UV light, essential in killing unwanted microbes in the water. Therefore, you should consider buying one.

    Whether you have an aquarium, a pond, or an aquaculture facility where you want to remove all ammonia and other debris, the Aqua Ultraviolet Ultima II is an excellent product to install.

    You will get clear water that is also healthy for your koi fish.

    This is a reliable and affordable bead filter for removing impurities in your pond.

    The only challenge is that it lacks UV light and has a short warranty. Aside from that, this is an excellent product that will last for many years to come.


    • Easy to clean with the backwash cleaning
    • Durable construction for longevity
    • Reliable biological filtration as it has a large surface area
    • Comes with a one-year warranty
    • Simple to use


    • It doesn’t feature UV light as suggested by the company

    Ast Bubble Bead Filter Bbf-xs2000

    Bubble Bead Filter The Original Bead Filter: AST's Pond Filtration Solution

    What We Liked Most About This Product

    The AST Bubble Bead Filter BBF-XS2000 is the best-pressurized filter for small ponds, aquaculture systems, and research applications.

    The AST Bubble Bead Filter is sturdily made to withstand harsh conditions.

    What many people like about this koi bead filter is its exceptional backwashing system.

    Unlike most bead filters, this unit has the most efficient cleaning system, which is easy to use. Because of this, the overall cost of maintenance is lower compared to bead filters in the same price range.

    Product Overview

    The AST bubble bead filter is best suited for smaller ponds and aquaculture systems as it has a 2000-gallon capacity.

    Additionally, it is straightforward to install and use. So, even if you’re a newbie, you will still have an easy time using this unit.

    Moreover, the AST bubble bead filter with a 2000-gallon capacity has an efficient design that saves energy.

    On top of that, it is reliable with no internal moving parts that may weaken over time. The manufacturer says that it can capture 100 percent of particulates greater than 50 microns and 48 percent of particles between the 5 and 10-micron range per pass.

    Fitted with a large surface area, this device will provide outstanding biofiltration.

    This means that it will break down waste such as nitrogen in the water into non-toxic substances. With the backwash, all the gathered solids will be removed, and the water will look clean and clear.

    With such features, the AST BBF-XS2000 bead filter is a good investment.

    However, it lacks UV light, which is vital in eliminating undesirable microbes. So, this will be an added cost.

    Also, the manufacturer didn’t include a warranty, which is vital if the unit arrives with a damaged or defective part. The good thing is their customer support team is alert and helpful.

    Overall, the AST BBF-XS2000 bead filter is a reliable and straightforward filter that most koi pond owners should consider having. Also, it cleans easily and is affordable.


    • Sturdy construction for long-lastingness
    • Low maintenance
    • Simple to clean
    • Reliable performance
    • Simple to install and use
    • Efficient design
    • Great customer support


    • It doesn’t feature a warranty
    • UV light is bought separately

    Easypro Pond Products Pbf6000 Agricultural Pond Bead Filter

    EasyPro Pond Products Agricultural Pond Bead Filter

    What We Liked Most About This Product

    If you’re looking for the best mid-range bead filter on the market, this is a wonderful option.

    The EasyPro pond products PBF6000 agricultural pond filter is a sleek and durable filter made for medium to larger ponds. The filter comes with a 6000-gallon capacity, ideal for most medium ponds and aquaculture systems.

    The most exciting function of this bead filter is the backflush waste line. This feature comes with a clear part that assists the user in monitoring every cleaning cycle.

    As a result, the user can tell the extent of impurities in the water.

    Product Overview

    The EasyPro pond products PBF6000 bead filter is also robustly constructed from a heavy-duty polyethylene filter body. This is a strong material that will withstand tough outdoor conditions. Additionally, the unit features 2-inch inlet/outlet lines with unions.

    This mechanical and biological filtration system will efficiently get rid of impurities in the water, such as ammonia and other solids.

    This is thanks to the ultimate tube media. Furthermore, it takes around 48 hours to clear impurities from the water.

    Thus, you don’t have to wait long after a heavy downpour. Besides, the unit is simple to install and use, even for beginners in koi fish rearing.

    One of the fascinating features of this bead filter is the six-position control head. It simplifies the work of the user as they can control it from six position control. Aside from that, it has a high flow rate media that forms minimal back pressure.

    With such impressive features, the EasyPro PBF6000 bead filter is suitable for koi ponds, fish systems, and hybrid ponds.

    Nevertheless, you should be ready to purchase a UV light if you want to have a conducive and healthy pond for your fish.

    So, if you want a long-lasting, reliable, and efficient pressurized filtration system, the EasyPro PBF 6000 bead filter is a wonderful choice. You won’t have trouble using it, and it is durable.


    • Heavy-duty construction
    • Easy to set up
    • Easy to operate
    • Ideal for medium to large ponds
    • Excellent cleaning system


    • It lacks UV light

    Aqua Ultraviolet Ultima Ii 6000 Bead Filter

    Aqua Ultraviolet Ultima II 6,000 Bead Filter

    What We Liked Most About This Product

    The Aqua Ultraviolet Ultima II 6000 bead filter is an excellent and reliable bead filter that will help you filter large ponds with lots of fish.

    Made of a heavy-duty tank and control valve, this unit will last for many years if well-maintained.

    Many Aquarists applaud this bead filter because of its large tubular media with a low head loss and a very high biofilm surface that extends the breeding ground of beneficial bacteria. As a result, ammonia is kept at bay, and the pond retains balanced chemicals in the pond.

    Product Overview

    The Ultima II is specifically constructed to match the environmental requirements of koi ponds. Despite being a bead filter, it has high flow rates, which means the oxygen in the water won’t be depleted quickly.

    A unique feature of this bead filter is the special design that helps clean the unit. It has a “Y” shape and a wing shape on the outside that provides a protective surface during cleaning.

    To activate the backwash system, which only takes minutes to clean, you must rotate the control valve.

    Besides, the backwash system helps to prevent the media from clogging.

    You will have to purchase low-amp, high-flow pumps and a UV light for optimal performance. These are not included in the purchase; thus, they are additional expenses that you should be ready to incur.

    If you’ve been looking for an Aqua Ultraviolet Ultima II bead filter that can filter your medium pond, you will like this unit.

    It has a capacity of 6000 gallons, which will be perfect for your pond. It also has a very high flow rate but does a great job of filtering impurities out of water within a short period.

    Also, it is sold at a fantastic price when you consider its features.

    This is a good purchase as it is sold by one of the best bead filter brands on the market. Also, it is reliable, durable, and covers large ponds.


    • Robust tank for longevity
    • Durable control valve
    • Takes a few minutes to backwash
    • High flow rate
    • Perfect for large ponds and heavy fish loads


    • You will have to buy a separate UV light

    Our most frequently asked questions on bead filter.

    How Much Filtration Do I Need For My Pond?

    The level of filtration that you need for your pond depends on the size of your pond and the number of fish in the pond.

    Note that filters are rated to the volume of water in the pond. Nevertheless, a pond with fish will require more filtration than one without fish because of the waste and crumbs of the fish inside the pond.

    Therefore, you should acquire a filtration system that is 2x the filtration capacity of your pond. For instance, if your pond has a 2000-gallon capacity, you should get a filtration system that has a 4000 capacity.

    What Are The Benefits Of Using A Bead Filter?

    Also known as pressurized filters, bead filters can be mounted at or below ground level. Also, they can process vast volumes of water.

    Besides, the water flows slowly into bead filters, which provides better filtration.

    What Are The Differences Between A Pressurized And Non-pressurized Filter?

    Both the pressurized and non-pressurized filters do a great job of filtering the water system in your pond. However, these two differ and have their perks and setbacks.

    To start with, pressurized filters or bead filters are quite challenging to install compared to non-pressurized filters. But when it comes to designing the pond, the bead filters provide you with more flexibility than non-pressurized filters.

    Additionally, bead filters can filter large volumes of water compared to non-pressurized filters.

    However, water moves slowly, which can lead to oxygen depletion, and it can negatively impact your biological filtration. Last but not least, bead filters are slightly more expensive than non-pressurized filters.

    What Size Of Pump Do I Need With My Koi Filter?

    It is highly recommended to acquire a large filter that can handle all the water in your koi pond every hour.

    For instance, if you have a 2000-capacity pond, you should utilize a 2000-capacity pump or larger than that. Getting a bigger pump is always better.

    But if you have a bead filter, you should ensure that you use the right pump as the pump’s flow rate will have an impact on the pressure in the filtration system.

    After What Period Should I Clean My Bead Filter?

    There is no specified time for cleaning your bead filter. However, you should keep an eye on the outflow from the system.

    Also, having a bead filter is advantageous as you don’t have to worry about running past the required cleaning time. All you have to do is backflowing the bead filter from time to time.

    Final Thoughts

    Now that you know what the best bead filters are, you should get a pressurized filter that meets your needs.

    Different people have different demands, so we’ve included different bead filters to suit all of you.

    A koi filtration system is as important as the food you feed the koi. So, get the best bead filtration system for your pond so that you don’t have to worry about clean water anymore.

    Also, the right bead filter will ensure that water flows smoothly and the chemistry in the pond is properly balanced for your koi fish to live healthy and joyful.

    Take your time and go through the pros and cons before choosing. All the best as you select the next koi bead filter for your beautiful koi pond!


    • Lydia Beaumont

      Lydia Beaumont is a go-to expert in interior design, known for her knack for stylish table settings, blending houseplants seamlessly with home decor, and designing inviting outdoor spaces. She has a real talent for making spaces look stunning while keeping them comfortable and livable. Lydia's creative touch brings a fresh and vibrant feel to any room or garden she works on.

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