As part of Regular Care to reduce aquarium maintenance,To directly treat and control algae during Water Problem Solving,ALGAEFIX is a revolutionary product specially developed to control many types of algae in freshwater aquariums containing live fish and plants. Effectively controls green water algae blooms. Keeps freshwater aquariums clean and clear. Weekly doses of Algaefix will control algal growth and reduce aquarium maintenance,Treats: 1ml treats 10 U.S. gallons of water or 5ml for each 50 U.S. gallons of water