Clear Fx Planted is an advanced comprehensive filter media for Planted Aquariums and is the only filter media needed to ensure the health, clarity, and stability of your Planted Aquarium. This specialized Planted Filtration media uses cutting-edge technology that specifically targets and removes organics that nuisance algae feeds on from your Planted Aquarium. It does not strip important trace elements your Planted Aquarium needs while polishing the water for crystal clear viewing. Clear Fx Planted raises redox (ORP),increased oxygen is beneficial to fish and plant vitality and increased activity. New Formula has double the organic scavenger resin to produce clearer water and more nuisance algae removing benefits! You will be amazed by the resulting clarity and overall appearance of your aquarium and its inhabitants.