Listing is for 1 (one) 16oz bottle of TotalPond Water Clarifier. TotalPond Water Clarifier quickly clears murky pond water of dirt, sediment, and organic particles. For best results pair with TotalPond Sludge Remover (see my listing for TotalPond Sludge Remover). Do not combine products in a single application. READ directions. How it works: The liquid formula uses polymers that consolidate and sink floating particles and organic matter to the bottom of the pond. When to use: Ideal for when organic debris builds up in the pond or when cloudy water is visible. Helps increase filter efficiency: The sunken consolidated debris created by the Water Clarifier can be more easily removed by your pond?s filter. Dosage: One 16 oz. bottle treats up to 960 gallons of water. For the best results: TotalPond Water Clarifier is most effective when followed by TotalPond Sludge Remover. Wait 48 hours after applying Water Clarifier to add Sludge Remover to your pond. (See my listing for TotalPond Sludge Remover). Directions: Use one capful (5ml) of TotalPond Water Clarifier for every 10 gallons of water in your pond or fountain water. Ideal for when organic debris builds up in the pond or when cloudy water is visible. Also use when opening your pond in spring, during spring, and when closing in winter. Aeration TIP: Especially in warm weather, before using water treatments make sure the pond has strong, constant aeration ? ex. fountain, waterfall, or other aeration devices ? to avoid low oxygen levels. Environmentally safe: When used as directed, this product is safe for fish, plants, domestic and wildlife animals. Non-toxic active ingredients: Deionized water, polymers