Your water seems fine, though is that ammonia that's showing at .25?
Your lights are probably fine, too, though I did have problems with open brains when I switched from power compacts to metal halides. In fact, the open brains showed more stress when I did that than any of the other coral did. That may be what's going on, if the coral had been in less intense lighting before you brought it to your reef.
You might want to try to target feed it some chopped mysis shrimp.