I have a white spot on my Tyree Kaliedascope Favia. I have been losing a few nice corals the last couple of months. All my par are good. I have grown this from one eye. It has been in the same spot forever. What can I do to stop the spread? I think I can see skeleton. Why does this happen? I grow corals from a tiny frag and this seems to always happen like a year down the road. What am I doing wrong?

