Marina Bio Clear Cartridge for Slim Filters, 3 pack, Ideal for goldfish, the filter cartridge contains zeolite and Ceramitek for optimum filtration and a healthy aquarium, activated carbon effectively removes poll
Marina 360/Marina Splash Replacement Filter Cartridge, with carbon and zeolite, improves water clarity and color while removing polutants and odors. This replacement filter cartridge is designed use with the Marin