Fluval Aquarium Underwater Filter

Fluval's Underwater Filter is an optimal water filtration system for aquariums. Equipped with foam filter media， it helps to provide effective and thorough mechanical and biological filtration. A fine foam pad traps small debris while a bio-foam captures debris and nitrifying bacteria. The nano filter has adjustable output with an attachable spray bar that distributes a gentle， even flow of water， making it safe for delicate fish or shrimp.