Dubia roaches breed pretty slowly so it would be pretty easy to control how quickly the colony grows. I have a very small colony right now with just three adult females. I'm not feeding off of it until I get a second generation of breeders. In theory my colony shouldn't really get too out of control. And if you start a colony that gets too big you could always sell some of your roaches back to the pet store. No one around here sells roaches so that isn't really an option for me!

All I do for my roaches is keep them warm (75 degrees although they prefer 85 and will breed quicker like that), feed them high protein cricket chow and my leftover catfood powder from the bottom of the bin (it's high quality grain-free), give them occasional fruits and veges (they LOVE organic apple sauce) and give them water cubes for hydration. Every couple days I do a light misting for humidity so they can molt properly. Really easy if you ask me!