On Wednesday my smallest OB zebra took a brutal beating from my other fish. I moved her to a hospital tank and didn't think she'd make it through the night she could hardly keep herself upright at the time. Since then I have been doing 50% water changes daily and treating with melafix since it started looking fuzzy. She's looking a lot better and swimming around better but her tail is rotting off. Today I vacuumed out chunks of her tail. I have no idea what to do now. Do I keep up what I'm doing?
Here is a picture

Here is a picture
