I have an emperor angelfish in my 180 gallon tank...just put him in the main tank two weeks ago and noticed that he has some spots that look like small patches of scales missing. I figured it was due to establishing pecking order between the angel and the silly clownfish (doesn't he know the angel is too big to fight? ) But they appear in several places. He's not sick, far from it. Eating like a horse and no visual appearance of disease. I did not treat him during observation as he seems quite healthy to me. Not sure where to post this question, please move as you see fit, thanks