DR TIM'S AQUATICS - DT WASTE AWAY SALTWATER 16 OZWaste-Away sludge busting beneficial bacteria will naturally dissolve the sludge and dirt that accumulates in an aquarium and prevent the build-up of debris when used on a regular basis making maintenance easier and quicker.Waste-Away is fast acting and specially formulated to remove aquarium gunk,unclog coral beds, and keep filter pads freely flowing longer. This results in betterwater flow, more oxygen and a healthier aquarium environment.Waste-Away should be used on a regular (weekly) basis to keep sludge from accumulating which can negatively affect fish and corals.Contains no phosphates - UPC: 812540012739