Marina Bio Carb Cartridge for Slim Filters, 3 pack

Marina Slim Filter Bio-Carb is a genuine replacement cartridge for all three Marina Slim Filter Models. 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 odours, while the Ceramitek, a highly porous ceramic biological filter medium, optimizes biological filtration.