I don't think Bill got close enough to his computer screen...do a search for Hydrodictyon, also called water net. Take Bill's suggestion about copper sulfate very seriously. I've seen a lot of ponds acquire some major issues when bombarded with copper sulfate year after year. A nice mixture of Cutrine, Hydrothol 191, and cide kick II will usually kill this plant. Be careful with the Hydrothol.....a little dab will do you. Shawn
