tissue recession

I did a 3 day blackout to finish off the dino and kept it under blue light only for weeks. They were bought a month before the blackout. Photos were taken yesterday. The problem is as follows: slipped tissue from the skeleton in canes, in euphilia seems to be too. Can this be due to changes in...

Hello! Over the last couple months Ive noticed a couple of these black/brown specs crawling around like bugs and for some reason the first coral I noticed them on has been having very slow tissue recession but still has great polyp extension for now, however I noticed it receding more and...