females don't get fixed.
I would reintroduce in a neutral bath tub and see how they do. I have never
had one glider kill another, so I'm lucky and happy, but I have rehomed some that
I found out killed their cagemate at a later date, this is confusing cause both
groups were happy together for a long time at my home. with NO history of ANY
injuries. so I tend to believe the living conditions might be very important
to a happy colony, toys, running wheels, large cage, time out of cage, good
food, good snacks, etc etc.