Hy! I have a breeding trio two females and a male. I had done lots of research on breeding sugar gliders but never thought to research breeding trios until recently I researched and found that sometimes the females could steal each others joeys. One of the females in my trio has one joey that is a little older than 4 weeks old and the other just gave birth to joeys on January 10th (I saw her in labor). The females were introduced to each other when the older one was 6 months old and the younger 3 months old. They have been together for about 7 months now and I introduced the male to them about 3 months ago. I do not want to separate them so I was wondering if there was anything other that I could do. I was thinking about putting one of the females in a separate cage during the night but letting them sleep together during the day or something like that. How long would I need to keep the females apart from each other? I read somewhere on another forum that someone would separate the female with joeys from the other females until the joeys were the size of the grape. Would that work?

Separating them at this time would stress out the mothers. I have no experience with breeding trios.

Most breeders do not recommend setting up a trio unless the girls are same batch siblings.

Hopefully someone with more experience will see this post.

Today I noticed one of them was sticking their head near the other's pouch while she was cleaning the pouch. They didn't crab at each other. Was she trying to steal a joey or thinking about stealing a joey?

She may have been helping to clean the joeys, you will see dad trying that too.

Thank you

It has been 5 weeks since one of my females has given birth and there is no visible lump I assume that the other female snatched the joey(s)
The other female's joey is doing great and is expected to come out of pouch any day now.
Should I separate the females?

I don't have an answer for you. Trios are tricky. Hopefully someone with experience with trios will see this post.

Sadly, you will never know why the joey didn't make it to the pouch. I fisrt have to wonder what you witnessed, because gliders don't show typical signs of bing "in labor".

Secndly, there is no way to prevent joey stealing in a trio. But once you know its happening, the responsible thing to do is either a) neuter the male and keep them toghether, or b) separate one of the females to a different cage.

My female's joey came out of pouch yesterday. It is a boy and I named him Cupid.

By "in labor" I meant I saw the joey crawling toward her pouch.

I have a spare cage that I can put my other glider until the baby turns 8 weeks oop and I can fix the daddy but I would hate for her to be alone for that long and I don't want to cause stress on anyone. My female without a joey has been very kind to the joey and I actually found her babysitting him in the sleeping pouch this morning. Should I still separate them?

I would leave her in there if she is helping raise the joey.