BioGuard Algae Complete is an extremely efficient, and a rapid working algae eliminator. All types of algae do not stand a chance against this product, some of them for an example are green algae, mustard algae, and black algae. Algae Complete was designed to be compatible with most swimming pool sanitizers, and is a non-foaming product. When used correctly, this product is profoundly effective. Kills and prevents all types of algae Works with most types of sanitizers (Except biguanide) Formula does not stain pools