8 Small Double Head Bio-Sponge Filters Supplies_Filter Media Feel safe with your aquarium

Feel safe with your aquarium purchase and know that your ecosystems home will be covered for years to come

one stainless steel blade and one plastic blade for your various aquarium needs

and 3/4" ID

9 (W) x 12

Light Bioload - 150 Gallons

8 Small Double Head Bio-Sponge Filters Supplies_Filter Media Feel safe with your aquariumSmall double head bio sponge filters 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. In addition, the sponge traps larger waste particles. It mechanically cleans the water without trapping baby fish. These filters are useful as breeding filters, as a