AquaFlow 50 Crystal Clear Filter Cartridge

For even better results you can replace the cartridges with Crystal Clear cartridges. A dual-action cartridge to promote crystal clear water and less algae, the SuperFish Aqua Flow Crystal Clear Filter Cartridge consists of unique filter media with a 100% open structure filter foam. It consists of filter foam and Crystal Clear, a combination of SuperFish Activated Carbon and Zeolite. It then removes all coloration and ammonia from the water and also helps to prevent Nitrate and Phosphates. The result is crystal clear healthy water with less algae growth. We recommend that you replace your cartridge once a month. Remove the cartridge before administering medicines or chemicals, otherwise they will then be absorbed as well. Contents: 3 Cartridges.