One of my gliders has suddenly started attacking her cagemate. They have been together for over a year and up until 2 weeks ago all was great. I noticed two weeks ago that they began sleeping in separate pouches. The other evening when I was feeding them I no sooner closed the cage door when Bella ran over to the wheel where Girdi was and attacked Girdi. They were rolled into a crabbing ball. I separated them and have attempted letting them close to one another but Bella tries to go after Girdi. They had checkups and are in good health. They get out for playtime nightly. Bella was kicked out of her original colony. The two gliders she had been with for years no longer accepted her and the other female would attack her so I separated her from them. Bella began losing weight and was obviously having a rough time so I adopted Girdi, went through introductions and they became cagemates up until Bella's recent aggressive behavior. Girdi appears to be doing great with the separation but Bella's food intake has decreased and I'm concerned she'll begin losing weight like last time. I fear if I get her a new cagemate she'll do the same thing eventually. Any suggestions?

I know you said they were seen by a vet, when was that visit?

How many feeding stations do you have in the cage, I suggest three on different levels.

Maybe put another wheel in the cage at a different height than the other one.

I suggest another vet visit to rule anything out with the glider that is getting attacked. In the wild they will run out ill gliders to keep predators away from the colony.

Keep us posted on how things are going.