I just added a powder brown tang to my reef tank. Was looking great at the trop, and a few hours ago. Only been in the tank 24 hrs. I've noticed lots of little small white dots all over the fish. He is starting to swim around the tank more today but still hides some, and I've seen him munching on the rock work. I haven't seen it eat any of the food I've added to the tank. Any way the dots worry me. They almost look like little air bubbles. Any idea what it may be? Should I be worried? I did some googling and came up with ich maybe? I've had the tank up for a year and never had that before. I also have 4 cleaner shrimp in the tank that I thought would take care of any pop ups.

Thanks