one of my chinese justed hatched this afternoon also, I also have the Emperor moth and the Promethea starting to hatch, I picked up the pod and it was a movin around inside, felt really weird. The baby Chinese are sitting all over the cage and on the evergreen leaves, they are all swaying, Wait , Stop, they make me dizzy...LOL :lol:
Picture 100 cups to cut mesh for, and at feeding time, open and closing them, with most of the mantids hanging from the lid. I would suggest you look at insect cups or vials for nymph raising. You can see both @ wwwmantisplace.com.
By the way, most breeders keep nymphs together for a while. I'm not sure what your plan is, but if you're keeping them separate from the beginning, I sure hope you have lots of free time!