Today I came home, and inspected my tank as I do everyday, and noticed somthing unsettlingly. My kole tank appears to have severe ich, which is really weird because yesterday I didn’t see a speck on him. He is acting completely normal, eating swimming chasing around the other fish as he normally does, but has hundreds of tiny white dots on him. None of the other fish have it and I can’t figure out where it came from, he is not a new fish I’ve had him for over 2 months now. I can’t really put him in quarantine because he is way to fast and I can’t catch him or take apart the 60+ lbs of live rock. I also can’t dose copper into the tank because of all the coral. So right now I turned up the heat to 82 degrees, and tried feeding garlic which he loved. Is there anything else I can do? And recommendations?