This is really starting to tick me off. The tank is just really cloudy. I mean really really cloudy. And it's not like rain cloudy, sand particles floating amist in the water, NO. It is durty, toilet [glow=brown,2,300]brown[/glow] murky, post hurricane diving water. The algae on the glass is the same color. Brown. this is wierd to me because I'm used to green algae on the glass. And I know that all tanks go through a brown algae phase as part of their cycle. But this is an established tank that was upgraded to a 20 gal. I've tested the water and everything tests out fine. I used to have high phospates. So I added Phosguard in a nylon bag inside my filter. ( Which by the way I am really pissed off about the bag opened and now I have filter media all over my sand. > ) Phosguard brought my phosphates back down to normal. Everything else checks out just fine in the water. Could it be bacteria bloom, algae bloom, diatoms? At this point I'm just guessing. The fish look fine, but my snails, and sun polyps are all dead. My green star polyps won't open, neither will my colony polyps. I'm getting irritated. Stupid murky water. Stupid hurricane. Grrrrr. Help. Please.