Yes, you can keep them just like crickets with the cardboard. They are actually cleaner and more self sufficient. They do not stink as much either. The reproduce quite quickly and the babies eat the shed skin and dead roaches. You might have to clean it every 3-4 weeks but other than that they are great feeders. Be aware though that your cham might not like them. I bought a colony for levi and he wouldnt even look thier way. I had them for quite awhile and the colony just got bigger. Also you would gutload and dust the same as crickets.