Waste-AWAY Natural Aquarium Cleaner helps keep your pond clean and water crystal clear using novel sludge busting beneficial bacteria that will naturally dissolve the sludge and dirt that accumulates in a pond and prevent the build-up of waste when used on a regular (weekly) basis. Waste-AWAY is fast acting and specially formulated to remove pond gunk and keep filter pads freely flowing longer. Waste-Away reaches places you can't! This results in better water flow, more oxygen and a healthier pond environment. Waste-AWAY removes dissolved and particulate organics, reduces nitrate and phosphate and is 100% natural. Contains no phosphate. For koi ponds & water gardens.