I'm going crazy here! I can't buy my RO/DI unit until at least August, but my phosphates are off the chart and I'm going through a pretty bad algae bloom. Cleaned my glass spotless yesterday, and it came back already! Plus, now the sand has some on it. I bought ten turbos today, so hopefully they help, but man, August can't come quick enough... I'd hate to do it, but I might start buying RO water from the LFS for now... it just sucks that by august I probably would have spent enough to get the damn unti by then!