CrystalClear D-Solv Oxy Pond Cleaner utilizes the latest cutting-edge technology to remove pond owner's "worst pond problem". D-Solv cleans in seconds of application to remove debris, add oxygen, and clean the pond from top to bottom. Use D-Solv Oxy Pond Cleaner on waterfalls, plant pots, and streams and your pond will look brand new in minutes! Non-toxic to fish. Spot treat as required. Same formulation as CrystalClear Algae-Off.