We haven't ever gotten them weighed, and right now we're saving up for the neuters. Ideally I would like to get them neutered at about 3 months and keep them all together. We have a big cage that can fit 4, and I would assume they'll all be happier in a bigger group as opposed to in twos. I can ask to get them all weighed next time we go get their nails trimmed, which will probably be when we do the neuter. The issue with keeping them together is that they're both boys, so it'll be three males and one female. Last time she had a male joey, the dad tried to attack it when it was only weeks old, and we tried to introduce them when it was a couple months old but he tried to attack him then too. Now, even seeing him through the bars may trigger an attempted attack. I'm not very comfortable with having three males and one female when I know that the dad can be aggressive. However, that all happened before his neuter, he has been a fantastic father, and he has calmed down a lot. If it's safe to keep them with the parents I want to, I just worry about it once they mature. Our 5 month old male was neutered right at 3 months (only days after his bald spot appeared) and he still scent marks compulsively and seems to have no idea he's neutered, so I could imagine dad and a child fighting over the female maybe...? Also, mom only had two pregnancies (as far as I know, she could have lost one). Before that she hadn't had any babies for at least a year. And she was NEVER brown before!! We do have two food bowls but they aren't very far apart. They've been in a smaller cage because of the joeys and we'll be putting all 4 in our big cage probably today, where the bowls are on opposite ends.
We are considering switching around the gliders and putting the babies with their older brother once they're big enough, and the other female we have with the adults. Right now we have the 5 month old son and a 5 month old female we got for him together, but it seems like she doesn't like him. It seems to us that she runs away from him, and we hear crabbing and chasing every single night. When we play in the closet, she gets as far away from him as she can. I don't know how gliders are supposed to act and I'm scared to take them apart in case they DO like each other, but we're worried the little girl is unhappy in there. So we could put her with the adults and put the little guy with the babies maybe...