Healthy Ponds 51130 Rush, 5 lb Provides quick results on eliminating floating organic matter on the surface of a pond Rush is a water oxidizer and pond cleaner that accelerates the decomposition of floating organic matter When Rush is applied to the floating matter it is then oxidized which causes the organic mat to sink to the sludge layer For best results, use in conjunction with Healthy Ponds Aqua Sphere Pro to consume excess nutrients, preventing reoccurring issues Safe, natural and 100% biodegradable