Hydro Sponge 3 Aquarium Filter

Hydro Sponge 3 Aquarium Filter

The 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" W
• SPONGE #2 Size: 4.25" H x 2.75" W
• SPONGE #3 Size: 4.25" H x 3.75" W
• SPONGE #4 Size: 4.5" H x 4.5" 
• SPONGE #5 Size: 4.5" H x 5.25" W