I had a big problem with all of my coralline algae bleaching and now in some spots I can see the coralline turning pink again. When I doing some stuff in my tank, I moved a rock and there was a super purple area of coralline underneath it. Why would this happen? could it have something to do with my lights? It just seems like where ever the light doesn't directly shine has good coralline growth. I have 2 96 watt PC
's, 1 bulb actinic and 1 bulb 10,000 k
. The bulbs are JBJ and they are pretty new, I got them around x-mas when I got my lights. At first the coralline algae was growing super fast and then all of a sudden started to bleach! Please help me with this, I am going nutz!