I use bare bottom enclosers for beardies with a brick under the basking light. There isn't really anywhere for roaches to hide that way. Also, beardies have a hard time seeing things that aren't moving, so I just poke the roach a little to make him walk if needed. One thing I have noticed is that you need to be really careful when switching them to new foods. I just give them one or 2 a day for a few days until their stomach gets used to it. Otherwise usually they will binge feed the first go, and end up with a stomach ache and not eat for days, then they dont want roaches for a month or 2 after that. I had it happen a couple of times with different beardies before I realized that was the problem. U also have to be a lot more careful with feeder size because oversized roaches can have the same affect.