I this photo you can see it had polyps but it lost all the pigment. Only coral that had any issues. During that time. Only thing I could think of is to much light as it was sitting directly under a puck. When it started to loose pigment the area got really bright. I tried to buy a diffuser and shade it but I think it was to late. I also moved it lower in the tank but it never recovered. It never stn/rtn but when I came back from vacation most of it was gone.That birdsnest ain't bleached. That sucker looks dead.