AQUANEAT Aquarium Bio Corner Sponge Filter, for Breeding Shrimp Nano Fish Tank, up to 15Gal

New design: quarter-cylinder shape increases the surface area to get a better water and oxygen exchange rate. It also make the filter easy to hide in the corner of a tank. Sponge filter provide both mechanical and bio filtration, also, the air infusion chamber produces minute bubbles which increase the oxygen solubility. Safe for fish: soft sponge material, traps floating debris and won't suck up your fish, excellent for small size fish like betta, 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. 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 15 gallon; Dimension: 2.25""Lx2.25""Wx6.25""H