AQUANEAT Aquarium Sponge Filter Breeding Fry Betta Shrimp Nano Fish Tank 4pcs (Middle up to 20Gal)

Features

• Sponge filter provide both mechanical and biological 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
• Dimension: 3.0"D X 6.5"H
• Includes: 4 pcs of sponge filter