Recently I completely emptied my 90 Gallon corner aquarium to replace the stand and then filled it up with fresh saltwater. I did it all in one day but now I have noticed that the coralline algae has turned white. Why is this and is it bad? I have tested the water parameters and everything has checked out. Right now the only thing in there is the live rock. Before emptying the aquarium I had it set up for about 2yrs.