My 55 gal reek has been taken over by mushrooms. I give up the one's that let loose to newbies but is there a way to get shrooms off of rocks. They are all over 80% of my rocks. I love them but I want to see the rest of my tank. I've done the point a powerhead at them til they let loose but that takes care of maybe 2 a week. any suggestions? if I can save them to give away I'd love to but if not I won't be heartbroken.