AquaForte Liquid Alg-Stop 5 kg Anti-Blanket Weed, White, 5 kg

Pretty rubbish instructions, but after I contacted the seller it was clear.Saying that the product is brilliant, I've used it once 3-4 days ago and already the blanketweed is disappearing. Not cheap, but it's very economical to use, so works out cheaper than anything else I've used.

Did not clear the water.Pond is still green.