Plate Coral dying?

[smokinreefer]

any chance you can get a pic of it?
do you know what lighting it was under before?
perhaps some debris landed on that part of it, causing the tissue to discolor?

if it is just a small patch that looks bad, i would suggest increase the flow a bit. maybe try feed it a little, so it can get a little more energy to heal itself up.

i have my plate, about 24" below a 400W MH. no direct feedings.