SuperFish Aqua-Flow 400 Crystal Clear Cartridge (1Pk) - 573905

Crystal Clear replacement cartridge for Aqua-Flow 200 and 300 filter, the special filter media contains zeolite in addition to activated carbon and ensures crystal-clear, healthy water and less algae growth. Use the Crystal Clear cartridge instead of the regular Aquaflow cartridge, for crystal-clear, healthy water and less algae growth Removes dyes, contaminants and ammonia from water and limits high Nitrate and Phosphate levels. 1 Crystal Clear replacement cartridge for the Aquaflow 400 internal filter, for 1 month of aquarium filter maintenance.