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XY-2831 Sponge filter
FREE
Description:
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 mechanically cleaning the water without trapping baby fish. They are useful as breeding filters or as secondary filters. Or they can be used as a pre-filtration unit by fitting to an external or a top filter.
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