After further observation I realized that whole rock (6lbs) is covered in it. I know I need to get it out of the tank but I don't have anyplace to put it that wont kill the four or five micro stars inside of it. I don't have a spare powerhead and my LFS isn't open until Tuesday. I also don't have a quarantine tank of anything of that sort. What can I do (no chemical supply store to buy sodium hydroxide which I hear is also good for the stuff)?