I'll watch him close. This morning when lights came on. All fish came to glass. For food. Wrasse seems less skittish already. Since the purple tang was moved. The injury dose not seem better or worse todayIf he keeps looking bad, you may need to QT (or put him in an acclimation box) just to provide some R&R away from the other fish.
There's something about a sick/hurt fish that other fish just can't resist. Its like a "kill instinct" they have to finish the sick/hurt fish off.