Donna,
You mean ater, right?
I thought you had 1 baby calico (varius X hispidus),
1 older male ater, and 2 young sibbling ater.
The two sibblings should be ok together, as long as they still look like a pair. It is hard to tell sex 100% for sure until they get some size to them. You should be able to get a good idea by now. Just play it by ear and if the sibblings still fight after being separated from the other 2, you may need to separate them. The older male should be in his own cage, especially if he is starting to get territorial. The hybrid probably should be in its own cage too.

Good luck.
Nick