I put the tank on our bed to take the pictures.
How I care for them is simple. I used a mixture of some kind of coco husk stuff, I think it was cypress moss (light colored fluffy light moss material) and Bed A Best. When I first set it up I also mixed in dead leaves but that was over 5 years ago and I have not added anymore. I often think about adding more leaves but every time I think about it I am not around good source of leaves and as I said I have not ever added more and as you see the colony is doing well. Not sure if adding leaves would help or not. I once or twice a week pour some water on the right side of tank depending on how dry that spot looks. I feed them different things like baby carrots, potato parts, crackers of different types, slices of bread, old cereal, apple pieces and other things I can not think of at this time.
This is how I been keeping them and it seems to be working for me. I do need to add more substrate for them and maybe a bigger enclosure.
I used to have a decent collection of roaches but down size to just these when we turn my office into a play room so they mean a lot to me. I should try starting a colony of another small roach just have not decided on what yet.
Thanks everyone for the great comments and for looking.