Thanks everyone! I'll go pick up some bird toys and chewing wood, and I'll play around with the substrate since I'm not seeing a consensus. Mootworm, they'll be in a different room, with a door, but it looks like I'll be sending the wheels back for different ones as they could potentially do that. I hate to sound mean, but I'm not really concerned with genetic projects right now, they're food. Then again if my past behaviour is any indicator I'll just end up with new pets...