Hydro III Sponge Filter

The Hydro-Sponge III Filter provides both mechanical and biological filtration for aquariums up to 30 gallons. Aerobic bacteria colonize the sponge, providing a bacterial substrate to facilitate the nitrogen cycle. In addition, the Hydro-Sponge traps large waste particles, mechanically cleaning the water. The Hydro-Sponge filters are designed for stackablility to increase the filtering capacity.

Price: 9.99 USD

Related Products:

• Filter-Max III Prefilter
• Dual-Action Foam Filter - Triangle - Up to 25 gallon
• Dual-Action Foam Filter - Round - Up to 5 gallon