Aquapapa Bio Sponge Corner Filter for Aquarium Fish Tank 70 Gal -100 Gal ea. (2-Pack)

Description

Provide both mechanical and biological filtration. Simply install an airline into the unit and provide both aeration and filtration for your fish. Aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle. Its quarter-cylinder shape allows to be placed in the corner and takes less tank space. The sponge traps large waste particles mechanically and cleans the water without trapping baby fish.