Bio Sponge Filter Air Pump Driven Up to 20 Gallon Each, Breeding Fry Betta Shrimp Fish Tank Aquarium (Small 4-Pack)

I put this in my10 gallon tank. Keeps the water nice and clear

The best in quality

We have multiple fish tanks. My boyfriend says once you get them water logged they are really good. He says they are easy to put back together even when you take them apart to clean them.

Some people call me Maurice 'cause I speak of the pompatus of love. Other people use this sponge filter to filter out what I say and live healthy lives.

I use these in 10 gal tanks and they work like a charm! My go to sponge filters for small tanks!

The filters arrived on time. They are great value for exact sponge filters that you need for any aquarium.

The product is exactly as described. They are my go-to sponge filter for my fish room. Very affordable. Quick and easy to order.

I have these in almost all of my tanks; they take some finagling because they like to float but if you plan it right you can wedge it in behind your hardscapes so they kind of blend in and they are SO easy to set up and they provide great biofiltratioon. Easy to clean, impossibly easy to run, I have at least one in each of my tanks.