So I purchased a yellow tang from a friend that’s had it for years and placed it in my tank after 45mins of acclamation. Two days later he’s covered with ich and is only staying on one side of the tank. It’s a reef tank and I know I can’t catch him. I just need to know which medications I should gamble with. I’ve tried Herbtana in the past and it worked about 75% of the time. I was recommended Polyp lab medic from lfs. I could use all opinions at this point