Sorry for the delayed respose. The tank is several years old but I put some new LR
in it aboout a week before starting this thread. So the tank is old but some of the rocks are new. As for the distance, I meant 1.5 to 2 feet
away from the MH
light source. I moved the coral to the bottom of the tank last week just to see what would happen and it already seems to be getting some of its color back. Nothing different in the growing pattern though (if that would be possible). I'll give it some more time and see what happens. By the way, here is another coral I've noticed is having the same type of problem. I got it about a while ago but honestly don't remember what it type of coral it is. Can anyone help ID it for me? Its the first picture.