AQUANEAT 4 Pack Double Bio Sponge Filter, for Fry, Betta, Shrimp, Nano, Aquarium Fish Tank (Large up to 55 Gal)
- Sponge filter provide both mechanical and bio filtration, also, the air infusion chamber produces minute bubbles which increase the oxygen solubility.
- Easy to Set up & Clean: Simply install an airline into the unit and turn on the air pump.
- simply rinse and squeeze sponge in tank water.
- Recommend Tank Size: Up to 55 gallon, excellent for small size fish like dwarf cichlid, guppy, killifish etc.
- or for hatcheries, maternity tanks, and fry tanks, as the filter produces minimal current and has almost no way to suck the fish through the filter.