schultz moisture plus crystals from home depot near the tropical plants...
put like 1/2 tsp in a cup of water and let sit. make sure you keep it in a jar with an air tight lid. you'll have water for him till he's full grown just about.
you can use a deli cup with a lid... melt a hole (with a soldering iron) big enough for him to fit in the side... fill it up with the water crystals (after they've expanded with water) and hide it in a hide he can gain access through so you don't have to look at it...
if you're planning on breeding roaches it'll be very helpful and thrifty to have around anyway.
also... [yt]<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/SaH9biXEoGQ&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/SaH9biXEoGQ&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>[/yt]
the only thing i do different is i add a third dish for them. instead of keeping the oranges bare since i keep a small colony i keep them in a cup. i swap the oranges with something similar to the next vid when they're eaten up and back to oranges when that's done, etc., etc..
[yt]<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/BlM9RaCBt_M&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/BlM9RaCBt_M&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>[/yt]
EDIT: the recipe i use is basically whatever veggies i have around for my beardie though...
oh, and i got my b. dubias from gregs exotic inverts...
www.citrusxsandfire.webs.com. i highly recommend him. service and packing job were excellent. become a member to his site and you can usually get discounts also.