ID White Stuff on rock

chruckguy

New Member
I've noticed on a piece of dead branch coral that I got a long time ago, some white spots started to appear on it. I have recently added a couple of pieces of LR to the tank next to it and it seems to be spreading. Is this some kind of sickness? Should I take the rocks out? Here is the best pic I could take, the white stuff is in the middle of the picture...
 
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