Kills algae in fresh & saltwater aquariums, fountains and ponds. Harmless to fish and animal living in the water and does not retard plant growth.

Add 10 ml to 100 liters of water. Distribute evenly and aerate the water well. Carbon filtration should not be used. Algae will disappear in about 1 week. Repeat when algae begins to to reappear, probably 2-3 weeks depending on the system.