Features: GREENCLEAN GRANULAR ALGAECIDE: This 8-pound bucket treats and controls algae in up to 16 000 gallons of water for your in-home or residential ponds fountains or water features; this product can be used while your pond is stocked. IDEAL FOR PONDS WITH FISH AND AQUATIC LIFE: This product is not harmful to fish or aquatic plants when used as directed and can be used while your pond or water feature is fully stocked; kill algae and improve water quality while your fish and plants thrive. CLEAN FORMULA: Our clean formula is a great alternative to harsh chemicals and it is chlorine copper and phosphate-free; that means it wont harm fish or plants and targets the algae in your pond. WORKS FAST: This product is quick and efficient and begins working on contact killing algae fast; you'll see full results in 24 to 48 hours after proper treatment releasing oxygen to your water feature. TREATS TWO ALGAES: GreenClean Granular Algaecide is effective and offers immediate results when eliminating blue-green and string algae; It kills on contact and works best when applied in the early morning hours on calm sunny days. Specification: Net content: 50g Shelf life: 3 years Notes: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. includes: 1*50g Algae Clean-Out Algaecide "