once upon a time, when I used to live in the states, I successfully bred klauberi and croceater. I used 40 gallon breeder tanks with deep substrates. I would lay a thin layer of substrate down, then layer tree bark and rotting logs, fill edges with soil, add more bark and rotting log bits, then cover with more soil. The final layer was nice big pieces of mossy tree bark and soil all around them. Then moss on top of the soil. I kept them close to a window To keep them on a regular circadian rhythm. I then would be sure to hibernate them with temps that were a constant low 40s probably. In march, I would allow them to warm up a bit and they became very active and fed like crazy. Come summer time, they would go through brumation with temps in the 60s. This period was also a time that I allowed them to dry out quite a bit between watering (they don’t die). Come fall, I would wet them down pretty good and let the temps drop and they would become very active again, coming to the surface to feed. This is when I would find the newborn babies cruising around with the adults. I literally didn’t check on them when they were underground. Just leave them alone and they do the rest. You just control temps and water.