Treatment for killing floating, submerged, and planktonic algae in ponds/lakes. Spring application. Algae forming on the bottom of pond & water temperature above 60 degrees. 30 day residual suspension using Stabitrol technology to aid in control of Algae. 1 Gallon + 9 gallons of water/acre will contact kill algae. (See label chart for specific algae type). DO NOT treat more than 1/4-1/3 of the surface area of pond at one time to avoid Oxygen depletion due to vegetation death. Wait 7-10 days between treatments. Re-treatment during season will be needed. Treat when algae is in early stages. 100% safe for water use immediately.