Odd white ring on Emperor

[michealprater]

He is not acting his boisterous self tonight. He is usually all over the tank, he is kind of hanging in one spot. Still eating great. He has an odd spot on his lower rear fin. It resembles ring worm on a human but not red. Should I be concerned?

http://i128.photobucket.com/albums/p188/michealprater/d0803d8f.jpg

[michealprater]

Spot seams to have disappeared and he is back to chasing the other angels away. False alarm I guess. I have noticed he has spots that come and go, I know they are not ich like and are not flukes. I am wondering if these coloration changes are normal for adult emperors.

[gbhayek]

I hope so. That's a beautiful fish. Keep us updated.