API Pond AlgaeFix effectively controls many types of algae in your ornamental pond, water garden, or fountain. This safe, effective water treatment removes Green or Green water algae (Chlorella), String or Hair algae (Cladophora) and Blanketweed (Oedogonium).#1 algae control product for controlling green ponds and green algaeKeeps Koi ponds and goldfish ponds and water gardens clean and clearControls existing algae and helps resolve additional algae bloomsPondCare Algaefix will not harm aquatic pond plants, koi or goldfish. It does not cause cloudiness, alter the pH, or add harmful copper to your backyard pond. Does not expire.Note: Do not use with: Shrimp, Crabs, Lobsters, Crustaceans or Snails.Directions For Use: It is a violation of Federal law to use this product in a manner inconsistent with its labeling. For synthetically lined pond and fountain use only, where all water is contained without any outflow.Add 1 teaspoonful for every 50 gallons of pond/fountain water or 1/2 cup for every 1,200 gallons. Thoroughly mix into pond/fountain by adding near the pump outflow, waterfall, or aeration device. Can be mixed in a bucket of pond/fountain water and dispersed evenly around the pond/fountain. Repeat application every 3 days until algae is controlled. Be prepared to siphon out dead filamentous algae. 8 ounces treats up to 2,400 gallons. 16 ounces treats up to 4,800 gallons. 32 ounces treats up to 9,800 gallons. 64 ounces treats up to 19,200 gallons. 1 gallon treats up to 38,400 gallons. 2.5 gallons treats up to 96,000 gallons.Once algal growth is under control, add one dose per week. Weekly treatments will control algal growth and reduce pond/fountain maintenance. CAUTION: Do not use with freshwater crustaceans, including shrimp, crabs and lobsters.Warm Weather Caution: Before using PondCare Algaefix, make certain that the pond has vigorous aeration, i.e., a fountain, waterfall, or aeration device to avoid fish loss due to low oxygen levels. When algae is controlled and removed by the filter or settle to the bottom of the pond, the oxygen level may drop to harmful levels if adequate aeration is not provided. Therefore, when using PondCare Algaefix during warm weather and high water temperatures, vigorous, 24 hour aeration is required. Do not shut off pond pumps and aeration devices at night.Active Ingredient: Poly[oxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene dichloride]: 4.50%Other Ingredients: 95.50%PRECAUTIONARY STATEMENTHAZARDS TO HUMANS and DOMESTIC ANIMALSCaution: Harmful if swallowed or absorbed through the skin. Avoid contact with skin, eyes, or clothing. Wash thoroughly with soap and water after handling. NOTE: This product contains a chemical known to the state of California to cause cancer.First Aid: IF ON SKIN, thoroughly wash with soap and water and remove contaminated clothing. IF IN EYES, hold eye open and gently flush with water for 15 minutes. IF SWALLOWED, call a Poison Control Center or Doctor immediately for treatment advice.Storage And Disposal: Nonrefillable container. Do not reuse or refill this container. Offer for recycling, if available. Rinse thoroughly before disposing of the empty container. Do not contaminate water or feed by storage or disposal.For more information, contact the PondCare Technical Services Department at 1-800-847-0659.