ill start by saying these are far from my staple feeder. so I decided to experiment with a small colony of beetle and now that there all mature im wondering.. -Should I be leaving all scraps in there, do they actually lay there eggs in them? - When I open the droor there in why are there always a couple of them on there backs but very much alive and well. Also are they very likely to eat the eggs an how often do you switch. thanks for answers!