Cloverleaf Blanket Answer All Season is an award-winning treatment for clearing blanketweed and string algae from garden ponds. It's a 100% natural blend of minerals and enzymes that works where many bacteria-based treatments fail, and it's completely safe for pond fish, plants, and biological filtration systems.
To use, simply mix the required dose with pond water in a watering can and pour evenly over the pond's surface. The water will take on a milky appearance at first, but this clears within about 5 days as the treatment gets to work, with the spent ingredients settling as a fine powdery layer on the pond liner.
Blanket Answer can be used at any water temperature, though it works most effectively above 10°C. There's no need to switch off UV units or protein skimmers while treating, and it starts working immediately, helping keep filter media cleaner as it goes. Most ponds only need a single dose; if further treatment is needed, a monthly top-up is enough to keep things in check. Wait at least 10 days before adding any other pond chemicals or treatments.
This 800g tub treats ponds up to 10,000 litres (2,200 gallons), based on a dosage of 10g per 125 litres (28 gallons). There's nothing to be gained from using more than the recommended dose.