Oh, and I've had the wrasse for just a few weeks. He was the last addition to the tank, and the cause of the temporary "situation".
I also want to add that I have studied him realllllly close to see if I can find any other problems. There is nothing notable. Eyes clear, coloration is excellent, no visible markings, scars, bites, burns....nothing that I can "see" wrong with him at all.
*ETA - Also I should mention there is no coral in my tank - very much a predator tank, so coral is not even an option unless I was looking for an expensive means in which for them to file their teeth lol.*