If you want to add them to the diet, here is what to do:
1) Put them in a container; glass or plastic
2) For substrata, use rotting leaves, fruit/vegetables.
3) Have bark for them to hide under.
4) You MUST keep it humid-they breath through gills. misting, sponges filled with water, etc.
5) Once you get babies, separate them into a second container, you now have a clean colony to breed from.
It is a pain in the posterior to keep them moist enough in a house. Been there, killed them, done that!
Nick Barta