Hello, we have recently acquired a Copperband Butterfly. He was doing great in the LFS, but once added to our tank, has presumed this hyperstressed state. Initially, he was temperature acclimated for about an hour, and then drip acclimated. Once added to the display, he was met with some slight aggression from our yellow tang, nothing serious. Eventually, he retreated to the upper corner of the display, looking and acting the same as he does in the attached video. He was added along with a melanarus wrasse which is doing great. Tank is 84x25x25. After spending the night continuing to stay at the top of the water in this state, I moved him to the sump where things are darker and calmer, which is where this video was filmed. What could be wrong here?