So I have a yellow tang in 30 gal QT and he’s doing fine. Healthy, eating well, getting fat. The problem is his reflection. He sees it on the ends of the tank and even on the bottom. He swims 100mph non stop, taking the same route over and over because he thinks there’s another tang in there with him. I tried hanging towels on the ends to block out his reflection, but that didn’t work. I’m exhausted just watching him. Reefing is supposed to be peaceful, calming, stress reducing. This is everything but that. Any suggestions?