Damaged pectoral fin base from fighting

[Vix1987]

Hi ,
My female convict has an injury from fighting in a new tank while everyone was establishing hierarchy. She has what looks like an infected base , I started to treat with esha product and stopped when it seemed to be healing however it’s not clearing up and appears to have got bigger. Does anyone have any suggestions on how I should treat it? Or what with. She’s probably the hardest to catch in there but if I need to take her out I have other tanks to treat her - photos attached

 

[Livebearer08]

Looks like a bacterial infection to me. I would isolate the fish and continue treatment. Feed her well. Good luck.

 

[Vix1987]

Looks like a bacterial infection to me. I would isolate the fish and continue treatment. Feed her well. Good luck.

Thankyou