“a concentrated liquid algaecide with a wide range of labeled use sites.- Contains chelated copper which stays in solution to continue controlling a broad range of algae well after application.- Waters treated with this product may be used immediately for fishing, swimming, livestock, or irrigating or drinking.- Do not use in waters containing koi, hybrid goldfish, or trout or if hardness of the water is <50ppm.- – – 9% copper from mixed ethanolamine complexes. Size gallon color “bci – 076513.