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Marina Bio Carb Cartridge for Slim Filters - 3 pack
The Marina Slim Filter Bio-Carb is a genuine replacement cartridge for all three Marina Slim Filter Models (S10, S15, S20).
Ideal for tropical fish, the filter cartridge contains activated carbon and Ceramitek for optimum filtration and a healthy aquarium. The activated carbon effectively removes pollutants and odors, while the Ceramitek, a highly porous ceramic biological filter medium, optimizes biological filtration.
The easy-to-use disposable cartridge should be replaced every two weeks for best results.
Never replace all filter cartridges at the same time to ensure a constant presence of beneficial bacteria.