CrystalClear RapiClear is designed to clear cloudy, muddled pond water quickly, usually within 1-3 hours depending on the size of the pond. CrystalClear® RapiClear™ will quickly restore pond water to a brilliant shine. CrystalClear® RapiClear™ has unique properties that allow suspended particles in water to attract together and fall to the bottom of the pond where they can be vacuumed out or removed by filtration. FEATURES: -Pond Water Clarifier -Flocculates & Clears Pond Water -Fast-Acting, Works in as Little as 1 Hour -Safe for fish, plants and aquatic life -32 oz bottle treats 16,000 gallons