Congrats! How old are your babies?
Please consider separating them asap, they will try breeding from a young age and can get very territorial and attack the other. Also one might not get enough basking time if the other hogs the rock.
Dubia colony is a great idea to do, of your in the states you can buy feeder sized roaches from here: http://gordosfeederbugz.com/shop/fee...dubia-roaches/
And breeders from here: http://www.rainbowmealworms.net/roaches/
A good colony would be 100 F and 30 M, don't let the the male population get to big or they will start fighting over the females.
Overall, good luck, ask any questions you need, and maybe a rundown of their setup? (I can't see the pics ether).
Reptimom.