Aquarium Solutions Mini Bacto-Surge Sponge Filter Kit
Aquarium Solutions Mini Bacto-Surge Sponge Filter Kit
Bacto-Surge® Biological Action Filters are air-driven sponge filters (air pump not included) which offer superior mechanical and biological filtration of your aquarium water. The highly porous sponge contains extreme surface area and thousands of microscopic pores where aerobic bacteria, hydrated with oxygenated water, can grow and flourish.