Not to rain on your parade or anything but how many adults did you get in the 120? 120 adult dubia for $15.00 is a great deal. 120 mixed nymphs means you will not be able to touch them for feeding for quite a while. It will take several months for the nymphs to get to the size where they are breeding. By several I dont exactly know what I mean since I have not had any of the nymphs in my colony get to adult size yet and I have had them going for 6 months. But the more adults you have the quicker they will breed so you just have to be patient and use other feeders until they are putting out enough for you to sustain your herps. Do not feed adults off to your chams. It will result in taking longer for your colony to get going full steam.