Problem with clown fish

I just added a second false percula clown to my tank. While finishing up acclimating him, I noticed the original one has a red spot underneath his mouth. When I put the flakes in, the new clown eats them, the old one seems to go toward them but doesn't get them, it looks like he is having a problem with his mouth. Any ideas?
 
id qt to him asap....its prolly some type of bacteria infection...possibly the first step in mouth rot or something along them...definately not ick (srry)
 
probably just a wound from the initial stage of determining who's the more dominant clown of the two to determine sex.
 
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