I have a
betta that is going through not tail rot anymore, but I'm trying to regenerate his tail now. It's pretty short. I had him on Melafix and I'm sure you know about that too. I was told that as long as the tank is kept pretty clean and the temp is raised to 82 degrees that it should be OK, but I would get some kind of Med as soon as you can so that it doesn't get worse. Do you have any aquarium salt? If you do that will help the finrot too with the raised to temp to 82 degrees until you can get something else. Natalie