I have no 100% on this topic but I will share with you what I have learned.
Needs a very large container if you are keeping more than 1 at most I say to keep 3 to 4 at most in a setup the size of a critter keeper always make sure you feed them because they are very cannabalistic. I've seen them breed in captivity but the one I bred I just happend to see them breed and to help with breeding if you have space keep them in pairs and keep their substrate fairly moist. Once you do see breeding I say check their setup every 1 to 2 days for about 1 to 2 weeks and for larva I recommend keeping separate just in case .
Diet adult/ will take worms,beetle larva,termites,dead soft bodied insects,mealworms larva and adults,isopods and roly polys,and raw meat no 100% on that.
Larva/ dead spiders buried in ground,mealworm pupa,june beetle larva,termites, and worms.
Good luck they can be very annoying when it comes to cannabalism but just hang in their and I think you can/ need to hibernate adults and larva