"they normally do it when stressed" should tell you something, don't you think?
when are you going to take that lion out of the 10 gallon that you have him in?
A ten gallon? I hope that lion is a baby. I'm not part of the "Tank Size Police", but that is very, very, cruel. I hope the case is your profile is not updated.
my lion does it all the time and is not stressed, i read that they shed their coating from time to time and its perfectly normal, and i hope you don't have it in a 10 gal either?