Air collar makes smaller bubbles for improved performance
Easy Flow accessory increases water circulation
Fine sponge for polishing the water
Sponge filters offer reliability and hassle-free operation. With no moving parts, all you need is an air pump with some airline tubing, and you've got a filter that is fully contained within your aquarium. Sponge filters are completely reusable, don't need any replacement cartridges, and last for several years. Plus, they are gentle enough for betta fish, baby fry, shrimp, and other slow-moving species. Trusted by fish farms and wholesalers, they are an excellent choice for aquarium filtration that you can set and forget.
Increase Circulation in Your Aquarium
The Easy Flow Sponge Filter creates a directional current in your aquarium. This is good for delivering nutrients to plants and sweeping debris back to the filter. It also benefits fish by giving them something to swim against.
Adjustable Height for Different Tank Sizes
The Easy Flow curved uplift tube has an adjustable height, allowing you to use it for both small and big tanks. Use our sizing chart to find the perfect sponge filter for your aquarium. Ideally, the tube opening should sit 1/3 out of the water and 2/3 in the water.
No Air Stone Needed
Our air collar replaces the need for an air stone. Uniform bubbles with the airline tubing on the outside delivers better even flow, which increases the flow rate and reduces noise. No more glug, glug, glug sound. Use a small pipe brush or toothbrush to clean the collar during monthly maintenance.
Extra Heavy Base
Our extra heavy weighted base helps the sponge filter sinks right away. Give the sponge a squeeze when you put it in the water to remove any extra air. The heavy base also helps it stay in place when fish might try and move it.
Cleaning Is Easy
We recommend cleaning your sponge filter once a month. Removing the debris from the sponge ensures it won't clog up unexpectedly. While our sponge filters can often go many months between service, it's a best practice to service monthly. Also, clean the air collar with a small pipe brush or toothbrush to remove any debris buildup.
Bonus Tip: Pour the brown water on your houseplants to make them very happy.
So I purchased these for two of my tanks. They look great and being weighed down made them easy to place after rinsing them out and assembling them. They work great and they definitely help with circulation. Highly recommend them.
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Emily R. (Frisco, TX, US)
Excellent for Scrubbing Water in 65G Tank
I was very excited to try out this new fine pore sponge filter attached to a powerhead to see if I could scrub the water in my 65 gallon tank and make it extra crystal clear. GREAT SUCCESS!! Absolutely would recommend this sponge filter for that purpose!
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Paul T. (San Antonio, TX, US)
Green Easy Flow Sponge Filter (coarse)
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Mike H. (Lake Orion, MI, US)
Love This Product In Black!
I have run the green coarse sponges for years and have really enjoyed them. I feel that the black version looks great on tanks with black backgrounds. The included Easy flow kit makes the filters very quiet as well.
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Mike H. (Lake Orion, MI, US)
Great Product! Glad they came out with the Fine Sponge as well!
I have run the green coarse sponges for years and have really enjoyed them. I feel that the black version looks great on tanks with black backgrounds. I have used the fine sponges in the place of box filter in some of my mulmier tanks. The included Easy flow kit makes the filters very quiet as well.
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Rob T. (Clinton, NC, US)
Best sponge filter I’ve used
This is the best sponge filter I have used. Changed over all old sponge filters to these. Very pleased with the easy flow uplift! Highly recommended
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Fiona (Port Townsend, WA, US)
Functional & Easy to Clean
I really like these sponge filters. I do wish that we could purchase additional sponges without having to buy the entire kit (base & tubing).
These still work when they haven't been cleaned in a while, which is great, and they are very satisfying to clean (also very gross when you think about it).
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Shailynn
Love!
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Ray
The original just got better! Its now in black.
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Chris P. (Louisville, KY, US)
Black filter is great
I'm super glad black easy flow sponge filters are now available. Same great quality as the greenies but don't stand out so much in the tank. Highly recommend!