Hi guys! I got a new Pakistani Butterfly and my PWT attacked him. He has slight wounds on each side, which are not bad, but I noticed a few white spots on his pectoral fin. Can these be from the Tang or is it Ich?? The Tang couldn't retract his spine for a day. This all happened minutes after I uncovered my tank. I always cover the tank when I introduce a new fish so no light or extremely little for one day. So I immediately isolated the Tang from the rest of the fish. I don't want to fight Ich again. Thanks in advance for any thoughts.