Aquarium Bio Sponge Filter Up To 20Gal 4Pcs Bundle With 4Pcs Sponge Filter Replacement

Bundle Includes: 4pcs sponge filter4pcs sponge filter replacement Features: 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 20 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 Filter dimension: 3.0D X 6.5H; Sponge Dimension: 3D x 2.75H