Hydro Sponge 1 Aquarium Filter

Hydro Sponge 1Aquarium FilterThe Hydro Sponge filters provides both mechanical and biological filtration. Aerobic bacteria colonize the sponge, providing a bacterial substrate to facilitate the nitrogen cycle. In addition, the Hydro-Sponge traps larger waste particles, mechanically cleaning the water without trapping the baby fish. Five Sizes Available:- Hydro Sponge I, up to 10 gal.- Hydro Sponge II, up to 20 gal.- Hydro Sponge III, up to 30 gal.- Hydro Sponge IV, up to 80 gal.- Hydro Sponge V, up to 120 gal.Sponge Sizes:SPONGE #1 Size: 2.25″ H x 3.75″ WSPONGE #2 Size: 4.25″ H x 2.75″ WSPONGE #3 Size: 4.25″ H x 3.75″ WSPONGE #4 Size: 4.5″ H x 4.5″SPONGE #5 Size: 4.5″ H x 5.25″ WHydro Sponge 1Aquarium FilterThe Hydro Sponge filters provides both mechanical and biological filtration. Aerobic bacteria colonize the sponge, providing a bacterial substrate to facilitate the nitrogen cycle. In addition, the Hydro-Sponge traps larger waste particles, mechanically cleaning the water without trapping the baby fish. Five Sizes Available:- Hydro Sponge I, up to 10 gal.- Hydro Sponge II, up to 20 gal.- Hydro Sponge III, up to 30 gal.- Hydro Sponge IV, up to 80 gal.- Hydro Sponge V, up to 120 gal.Sponge Sizes:SPONGE #1 Size: 2.25″ H x 3.75″ WSPONGE #2 Size: 4.25″ H x 2.75″ WSPONGE #3 Size: 4.25″ H x 3.75″ WSPONGE #4 Size: 4.5″ H x 4.5″SPONGE #5 Size: 4.5″ H x 5.25″ WProduct code: 4739Item No. FT-HS910