One of my goldfish has been having issues. At first it was his float bladder (which is better now), and then he was started to get this twitches or bursts where he would freak out. He is currently in a medbay tank where I was treating him beforehand. There is also some sort of hole in his side? Looks like it goes through the scales and down to some flesh. He is a Sarasa Comet. Any tips on what I should do? When I looked up some things it said it might have been a parasite.