My bubble coral got covered about 2/3 of the way with sand courtesy of my pistol shrimp. I was at work for ~24 hours before I came home to find the problem. I uncovered the coral, and it's looked like the picture below for a week or two now. I attempted to feed it in the picture below, but didn't get much of a response. The coral still puts out its sweeper tentacles at night. Any suggestions to help it heal or input on it's prognosis?
TIA!
TIA!