White "stuff" on clownfish mouth.

[untamed]

I had something similar with my clown recently. To me, it looked like he stuck his nose into something that he shouldn't have. For a few days, he had white marks all around his nose.

A few days later, all the damaged scales fell off and he looked fine again.

[Railskinner]

Ive just added another clown to my tank a week ago and they seemed to have being fighting quite alot ,looks as though they have settled down . Today i noticed as well that they have white lips. I now think this is bruising from all the bitings that they were doing to each other. I'm going to have to watch this as well carefully. Also are eating very well.If u discovered what this is plz let us Know