about a week ago i noticed what looked like a mushy coraline growth on my rocks. a week later... it looks like some one spread straw berry jam all over a new white carpet!!! i took the black light of which helped a little. i got a turkey baster out of the kitchen filled it with the tank water and blated it. it came of in a huge sheet i sucke it up and repeated until it was all gone. now it is all over!!! what do i do to get rid of it?