4PCS Air Driven Bio Filter Sponge Aquarium Filter, Bio Sponge Filter, Aqua Flow Sponge, Air Pump Driven, for Breeding Fry Betta Shrimp Fish Tank Aquarium

Features

• Function: The Air Driven Bio Filter Sponge Filter is suitable for aquarium, providing both mechanical and biological filtration, which can remove waste and maintain clean water for your fish efficiently. The Bio Sponge Filter can produce masses of air bubbles, which will help to promote gas change and increase dissolved oxygen level in the tank water
• Easy to Install or Clean: For installation - Just connect the Bio Sponge Filter to the air pump by airline tubing. For Cleaning - If the sponge becomes dirty, you can take it out and squeeze it by using the water for fish; Remember to clean the cracked stones regularly. For the Media - You can add biological media like biohome gravel, or change it to your preferred media and some poly floss
• Unique Design: The Aqua Flow Sponge 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 change rate, will be safe for small size fish like betta, dwarf cichlid, guppy, killifish etc
• Fitted Fish Tank Size: Recommended 1 to 5 Gallons, you can place it in the aquarium corner or hide it behind plants, suitable for small tanks or small fry containers, such as shrimp tank, betta tank, breeder tank, goldfish, snails, discus, guppies, fry, baby fish etc
• Nice Tips: To make sure the Bio Sponge Filter doesn't float, you'd better soak the sponges in your former tank water and squeeze all the air out, then make it stay a few hours while the bacteria settles, then put the filters together and press down the sponges in the tank for a few times until there is no more air bubbles