well i'm sure you can imagine catching her and removing it is not gonna be nice for either of you and there is of course the possibility that the stress will kill her.
Way I see it is you have 3 options
1 – Wait and see if she manages to remove it herself, shake it off or whatever….. Obviously if this hasn’t happened soon you’ll need to find another option anyway
2 – Try to find a local vet who will treat fish and get them to remove it for you
3 – Attempt to remove it yourself
If you do try to do it yourself don’t go in haphazardly, make sure you have a plan and are well prepared before hand, shut all kids and animals out of the room, have a clean shallow tray set up near the tank put a small amount of tank water on it, get some good tweezers ready to hand. You’ll have to be quick and decisive, mess around and you’re likely to injure her. Maybe best to have someone else on hand to help you, so one of you catches her, put her down on the tray and hold her so she’s not flapping all over the place then you go in with the tweezers and remove it.
Dose the tank with melafix afterwards as this helps wounds to heal. If you have a hospital tank she should go into this afterwards to have a peaceful recovery and she’s gonna be well stressed.
it looks pretty deep in (you can see the darkness of the bit under her skin/scales)
