Originally Posted by zomgchong
BlakbirdxGyarados, im prety sure yours is finrot, it looks just likke mine.
The redness in his fins also concerned me because i thought it might be ammonia poisonig but im not so surer thats possible considering how clean i keep my water....
I know it's fin rot on her. I just thought this would help as it's being stubborn to heal, but yours seems more like tailbiting. As has been established, of course. :P
I'm responding to this late, but I know you've had lots of help on it.
Also, forgive me if I'm repeating from someone else...
Ammonia poisoning really only shows up in the gills. As has also been established, your betta has butterfly coloring, not ammonia poisoning on his fins.