We personally purchase a dubia feeder from http://www.beardeddragon.co but if you search the topic in Feeders Forum I know I saw a step by step guide there to help you out. If I come across it first, I'll send you the link
Edited to add: THIS is in "Feeders" duh, sorry. This link viewtopic.php?f=76&t=188335 has given me the best information on how to keep our colony growing. We're not fully self sufficient yet but we're getting there. Yes, it's a long post but if you take the time to read it...you will find what others have done and what works/doesn't work...
I feed mine high quality dog food, whole grains (breads, cereals, steel cut oats, dry pasta, etc) and leftover dragon salad and kitchen veggie scraps. That's the same thing I feed my crickets too.
I feed mine the same veggies my beardie eats as well as left over fruit like apple cores, loose grapes, mango rind, stuff like that. Also feed em Repashy bug burger(dry) which they love and cricket chow, chicken mash and fish flakes. I usually leave the veggies in there for 2 days if it survives that long but fruit is removed after 1 day so I don't get fruit flies. That's also assuming the fruit lasts that long.
But I guess your real question is... If I want the strongest colony, what should I really feed them? Is that right? If so, read on...
The best thing to do is give them a balanced diet of good protein with plant and fruit matter. In my house that means dog food and scraps from our meals. :lol: They will cut through corn cobs and potato skins like butter. Whole carrots, oranges, and mango pits are great offerings.
If you do those things, you have nothing to worry about, as long as you keep the heat up. :twisted: