Shabunkin fish with injury

[Sam786]

My shabunkin fish has a large scar on her can sime tell me what it is she is in a tropical fish tank it is 90 g I haven't seen any of the other fish bothering her any help plz

 

[jlk]

Can you please provide some more info? Stocking? Water parameters? Water change schedule? Is the 'scar' your referring to the red spot/sore on his side? Its a bit difficult to tell what the spot is in this pic- is it a lump/growth or an ulcer or sore? How long have you had this fish? Thanks!