Okay that's a good start! Do you have a heater in there to keep the temperature steady?
I have had Bettafix and it does nothing whatsoever. I've also heard horror stories about it coating the labyrinth organ so the fish suffocates? No idea if that's true but I've backed off that medicine.
Oh no!! So sorry for your loss At least you did all you could to help the poor little guy Good luck with future fishUnfortunately it was too late, he passed away this morning. He must've gotten sick when he hurt himself a few months ago and then something this week just progressed it too far.
Thanks for all the advice.