Can you post a picture?
Fish fins usually grow back as long as they don’t get infected and if the aggression is stopped.
Jay
This is a picture I just took, the long fin that it used to have is about 20% of its orignal size. I am not too worried as it only has 19 more days of quarantine left, but if there's anything you could suggest to help the fish if nessecary then that'd be great
Thanks