new pond, have you purchased the "water weeds and algae book" from bob lusk? it offers a lot of insight. KELLY and BILL, correct my if i am wrong, but, although aquashade looks pretty (and i've used it...gets costly), shouldn't new pond push the aerator to appropriate limits, and optimize his fertilization of the pond to rid of algae and unwanted plant growth and to maximize fish growth? (if he wants a fishing pond not just an ornamental pond)? next, add some carp to clean up unwanted grass etc. and treat sections of the pond algae with copper sulfate/Cutrine Plus? others?