Large white spots

[martinmcnally]

My Regal Tang has developed 4 large white spots today. I've seen one with a bad case of Ich before so I don't think it's that. Each spot is about 5mm in diameter and it almost looks like a fungus or something growing or an injury. Three spots in a group on one side of the fish and one on the other.

Anyone know what that could be? Trying to get some pictures but he moves pretty fast. He is still eating well which is good I hope.

Any help much appreciated.
Martin