Description Algizin P Blanket Weed Treatment 250ml Algizin P works fast to destroy blanketweed – results can usually be seen within 1 week ! Waterlife’s popular Algizin P product is a true algicide (as opposed to an inhibitor), and as such it is registered with the HSE. Algizin P is blanketweed specific, it will not harm oxygenating plants, lillies, marginals or other aquatic plants. Algizin P is also safe with fish and filtration Repeat use during the growing season every 4 to 6 weeks or when re-growth occurs. Algizin P is available in 3 sizes: 250ml – treats 18,000 litres / 4,000 galls. 500ml – treats 36,000 litres / 8,000 galls. 1 litre – treats 72,000 litres / 16,000 galls.
