This stuff is forming on my rock now and I have no clue what it is or why it's there. It's this gray fuzzy looking algae that is all over my LR. It has this soft suede look to it. I am hoping it's not another fungal outbreak or something like that. The tank has no livestock in it, only LR and LS, it's my 150G. Sorry that pic isn't tack sharp, the glass is pretty thick. Any ideas? Thanks guys!