Just put together a basic dubia colony, still have a couple things to grab, but I'll post some pictures soon! Still have to hook up a thermometer/humidity gauge and some more hiding space. I had a few questions, I mounted the heating pad on the side, a small 8w heating pad. All Living Things brand, it's slightly floppy, and uses no spacers, just adhesive back with paper covering to peel off. I adhered it on the side, slightly off the bottom to have room for the cord. It has no substrate, since they'll burrow and it'll make them harder to find. It's a 20 gallon sterilite bin, and I plugged it into a basic thermostat and set it to low.