Specialized blend of micro-organisms with superior digestive capability; contains 100's of millions of hungry organisms; reduces odors and restores healthy bacterium to protect the natural balance of ponds/lakes; use one gallon per acre of water 4-6 feet deep; one gallon treats up to 1.5 million gallons of water depending upon water quality.Formerly Bio-Clean, Bioclean, Bio-Clear, Bioclear.