tang fin problems

[thresher9]

My yellow tang's fin is turning white and deteriorating. He doesn't seem sick at all but his fin in the one spot looks bad. The other fish in the tank aren't aggressive toward him either. Also his breathing seems fast, but it's just as fast as some of the other fish too.

 

[beth]

Actually, your tang is turning white in many places. Take a look at this info which details the problem he is experiencing:
https://forums.saltwaterfish.com/a/head-and-lateral-line-erosion