A few days ago I found one of my zoa frags (not sure of name, red with green skirt) face down in my aragonite sandbed. When I went to pick it up I accidentally pushed/grinded into the sand pretty hard. Now the colors are "bleeding"..specifically the centers have developed a blackish color and they dont look good. Do zoa colors recover, and turn back to normal after awhile? I can't seem to get a good picture of them to show exactly what they look like..needless to say I now superglue ALL frags to my LR