Waste-away is a unique combination of bacteria that attack and dissolve organic wastes in the aquarium quickly. Even with good maintenance and monthly water changes, sludge and wastes remain in the aquarium in hard to reach and hard to see places. Waste-away, a 100% natural, beneficial bacteria-based product, works quickly to find, break down and remove these wastes. Waste-away works to remove aquarium gunk, unclog gravel beds, and keep filter pads freely flowing longer. This results in better water flow, more oxygen and a healthier aquarium environment. Dissolves sludge and dirt_x000D_ unclogs and cleans gravel beds_x000D_ removes gunky wastes_x000D_ keeps filter pads cleaner and longer_x000D_ removes hidden wastes_x000D_ contains no phosphates_x000D_ 100% natural_x000D_ waste-away should be used on a regular (weekly) basis to keep sludge from accumulating which can negatively affect fish and corals. Use it to help get rid of cyanobacteria, aquarium slime and to keep tanks clean! Caut