Oh, the unthinkable has just happened. My boy Bones somehow got over the divider and got in a fight with his neighbor, Vandy.
I can't believe he managed to do it because I keep a plastic mesh on top of the dividers too to prevent jumping. There is a small gap where it meets the filter that I didn't think they could jump and get through at the same time, but I guess that's how it happened.
Anyway, Vandy's caudal fin is ripped in two places. One place goes nearly all the way to his body. Bones has two chunks missing from his anal fin and one chunk missing from his caudal fin. Both boys went back to their normal routines shortly after I got them separated and both had a good appetite for dinner.
They're living in a ten gallon heated, cycled tank that's been divided three ways. My question is, should I do anything to try to treat their fins or should I just watch to see that it heals on its own? If I need to treat them, will it hurt my third betta who also shares the tank?