CrystalClear® RapiClear™ is a flocculant designed to clear cloudy, muddled pond water quickly, usually within 1-3 hours depending on the size of the pond.  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. The result is an extremely fast clearing of the pond. Available in 16 oz or 1 gallon sizes.