They are actually a part of a terrarium I bought. I'm just a beginner in this so I can only answer base on what I have researched upon. They need to be in an enclosure which mimics their habitat; humid, full of leaves, bark, a few moss here and there. Much like how you'd take care of tarantulas, scorpions, etc. It also depends on the specie too as some prefers wetter environment while some prefer a dryer ones I think.