4 Pack Air Driven Bio Filter Sponge Aquarium Filter, Bio Sponge Filter, Sponge, Air Pump Driven compatible with

Function: The Air Driven Bio Filter Sponge Filter is perfect compatible with aquarium, providing both mechanical and biological filtration, which can remove waste and maintain clean water compatible with your fish efficiently. The Bio Sponge Filter can produce masses of airbubbles, which will help to promote gas exchange and increase dissolved oxygen level in the tank water. Easy to Install or Clean: compatible with installation - Just connect the Bio Sponge Filter to the air pump by airline tubing. compatible with Cleaning - If the sponge becomes dirty, you can take it out and squeeze it by using the water compatible with fish; Remember to clean the crackedstones regularly. compatible with the Media - You can add biological media like biohome gravel, or change it to your preferred media and some poly floss. Unique Design: The are designed with soft sponge material, traps floating debris, and the multi-layer shape increases the surface area to get a better water and oxygen exchange rate, will be safe compatible with small size fish like betta, dwarf cichlid, guppy, killifishetc. Fitted Fish Tank Size: Recommended 1 to 5 Gallons, you can place it in the aquarium corner or hide it behind plants, suitable compatible with small tanks or small fry containers, such as shrimp tank, betta tank, breeder tank, goldfish, snails, discus, guppies, fry,baby fish etc.