My questions are:
Will my GBs with missing tope fins die?
Why is my RFS so nasty as my research said they were the most peaceful of the sharks...(I even read that here)
Who should I take out?
What should I add?
1. No, but you need to keep the tank water real clean while they recover.
2. I've read the opposite on RFS. From what I've read, they get more aggressive as they get older.
4. Nothing else. Maybe trade out one set of those barbs and increase the school of the other.