I posted on here about 3 weeks ago as my betta fish (4 years old) has advanced fin rot. I dropped the ball on it, and missed it, and the betta lost a big chunk of it's tail. (crown tail betta) I gave it daily water changes with salt and enzyme to help with fin regrowth. When I didn't see improvement or worsening I tried bettafix. It still has a small amount of white near its belly and the fins seem about the same.
The fish is having no trouble swimming or eating. I posted a picture of it, and the condition really hasn't changed.
What should I do? Should I try something for fungal fin rot instead? Thanks!