Waste-away dissolves sludge and dirt in your freshwater aquarium!_x000D_ Waste-away is a unique combination of bacteria that attack and dissolve organic wastes in the aquarium quickly. Even with proper maintenance and monthly water changes, slime and wastes remain in places that are hard to see and hard to reach. 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. 100% Natural_x000D_ contains no phosphates_x000D_ unclogs and cleans gravel beds_x000D_ keeps