Blanketweed becomes resistant to treatments after continued use, and this is why our brand new treatment will work when others fail, even at low temperatures. Aqua Source’s Blanketweed Resolve Water Treatment is designed to effectively treat and prevent blanketweed in ponds, by targeting the phosphates that contribute to the string algae growth. Aqua Source’s treatment always remains effective, even in lower temperatures. The formula is free of algaecides, biocides, pesticides, ammonium compounds, and metal salts, making it safe for all pond fish, including koi and sturgeon, wildlife and filter bacteria. To use, simply sprinkle the required dosage around the edges of your pond every 10 days for 30 days and watch as the water in your garden pond clears. The product is 500g and treats 15,000ltrs (3,300 gallons). The UV Clarifier can be left on and it can be used with other medications. Wash hands after use and keep away from children.