So for about two weeks I have been quarantining two female bettas together. There was some mild flaring and nipping at first but then the two of them got along perfectly fine until about a day ago and it turns out the one that's actually the smaller female did a number on the larger ones' fins and it even looks like she has some scale damage. This isn't the worst fin damage I've seen but she's not in good shape. I moved the smaller female to a different setup and now I'm hoping I can treat this one. What do you guys think is the best approach? I have bettafix drops I've been adding and I have some melafix in the basement I could use. I might even have some epsom salt if that can help fight infection.