Originally Posted by LadyVictorian
I hear that Bettafix is bad for Betta...so no I have no experience with it because I won't use it. Have you tried Aquarium salt?
Edit: Another thing, guys could he just be losing his color because he is stressed? It seems from the OP description in behavior that he is a bit stressed out, he might be eating his own tail thus accounting for the shredded tail and he is afraid of the OP. This might just be a stress thing and if it is all this treatment with medications he does not need might only make him worse.
Yeah, he was/is probably stressed and got sick. I think it is more than just discoloration, though. It looks like a bacterial infection and his bottom fins have red spots/streaks now in some spots.
As for the Bettafix, I know it is very risky, but I read that it kills the fish if you overdose it. I think that maybe I haven't been putting enough or maybe have been putting just enough? I mean, today is his last day of treatment, but I see no visible results. :\ So, that's why I was curious about what the right amount might be to see good results.