stung sps question
 

well in my frag tank one of the snails moved a yuma so that it was laying on the base of an acro. now the half of the base of the acro is dead white. but the other side is still blue along with the top. I don't have a digital camera so i can't take pics, but i was wondering if I need to frag off the stung part, or just leave it be and see what happens. I've only got 2 acros in my tank as I'm just starting with them, but this thing has grown about an inch in a month. I'm super happy with it!
Thanks for the help in advance!

one of my monti caps fell into a yuma....and was stung pretty bad...bright white...i left it...within about 3 weeks it had skinned back over and now about a 1 and a half months later it has grown new polyps..and you would never know i was smoked by the yuma..

thanks...hope the same happens for me!