After writing to you all for advice on my massive amounts of string algae I have reached a conclusion. I spent money on many, many things to treat the water with, and lightened my wallet significantly, and in the end, it all boiled back down to the good old toilet scrub brush. I crawled all over in the falls and pond, scrubbing like a maniac and I'd let it filter and I'd take the filter out and clean it down, and repeated this over and over until I had nice, crystal clean water once more. I never paid a dime for the "elbow grease" I used and a small amount for my handy, dandy brush. I do intend to get a hard bristle brush with a long handle that I can just reach acrossed and around with and continue on with the scrubbing when needed. Thanks for all the advice. Pond is coming along much nicer now. Jax