My adults are very easy to handle, but the babies can be a little skittish. The only time I would go and wiggle any fingers is during food time. They are quite small even as adults and a 40 breeder would be fine for two. Now if you wanted to up in size an enclosure of 4x2x2 is a good option. Just make sure its an enclosure that can hold a minimum of 8 inches of soil material or you could do a large nest box if you do not want to cover the whole cage in that much material. I have had success with both options.