Chemi-pure Elite takes aquarium filtration to the next level. Chemi-pure Elite aquarium filter media combines the organic removing power of original Chemi-pure and the phosphate-removal properties of ferric oxide to make the perfect filter media. Chemi-Pure is a safe, effective filter media for creating crystal clear aquarium water, controlling unwanted algae, and reducing water changes; making fish healthier and allowing corals and invertebrates to acclimate more quickly and thrive in their aquarium environment. Ideal for freshwater or saltwater aquariums, Chemi-pure Elite is the perfect replacement for any aquarium filter using bags of carbon media. Treats 175 to 200 gallons.