About This

• 12 total Bio-Carb cartridges
• Provides ideal filtration for tropical fish
• For all three Marina Slim Filter Models (S10, S15, S20)
• The activated carbon effectively removes pollutants and odours, 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