Key features

• •Air powered sponge filter, both filtration and aeration in one solution, keeps water well oxygenated, works great without noise【Fits fish tank size: 20 to 55 gallon】
• •Sponge filters provide both mechanical and biological filtration - traps floating debris and protect your baby fish from being sucked up into the filter, aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle
• •Double 10-layer ribbed sponges design, it quickly established a bio filter, two sponges mean more surface area for beneficial bacterial colonization and faster cycling, keep your fish tank crystal clear and clean
• •Easy to setup: simply install an airline into the unit and turn on the air pump, great way to clean and oxygenate your tanks; Easy to clean: simply take out the sponges, rinse and squeeze them in tank water, remember to clean the sponges weekly and replace regularly
• •Easy to use: save room, comes with 2 suction cups, can be installed anywhere and easy to hide behind plants and decor; great solution for shrimp tank, betta tank, breeder tank, nano tank, turtle tank, hospital tank, goldfish, axolotls, guppies, fry, baby fish.