I had an outbreak of velvet in my tank that claimed all of my fish save for my Foxface. He has always been very peaceful and never bothered any of the other fish. However, after being alone in the tank for a couple of months he had become very territorial. I added a royal gramma and he wouldn’t let it out of the rocks. It died. I later tried a carpenters wrasse. Then I fed extra and put a mirror in the tank. Same results. The foxface literally just sat on the wrasse hiding place until it starved. I can’t change the aquascape due to corals and pulling him out would be a nightmare. Any other ideas? Thanks.