Tetra Internal Filter

Tetra Whisper Bio Foam Grid Replacement Kit. Bio Foam Provides An Extreme Amount Of Surface Area For Optimal Biological Filtration In The Tetra In Tank Whisper Power Filters. The Bio-foam Grid Fits The Whisper In-tank Power Filter. Each Whisper Bio Foam K

For the ultimate in convenience and quiet, choose a Whisper In-Tank Filter. These filters mount on the inside of the aquarium, rather than hanging from the outside -- making it possible to place the tank flush against a wall. In-Tank Filters are...

For the ultimate in convenience and quiet, choose a Whisper In-Tank Filter. These filters mount on the inside of the aquarium, rather than hanging from the outside -- making it possible to place the tank flush against a wall. In-Tank Filters are...

For the ultimate in convenience and quiet, choose a Whisper In-Tank Filter. These filters mount on the inside of the aquarium, rather than hanging from the outside -- making it possible to place the tank flush against a wall. In-Tank Filters are...