I started with 125 mixed sizes and now them all are mature and have been mating and producing nymphs very well for a wile. The problem is the little boogers are not maturing very fast so I have a big gap in sizes in my colony. Adults and very small nymphs. I have owned them for almost a year and expected them to grow faster then this. My B. fusca and craniifer colones are perfect and have had them for as long. What is going on?

raising the temp on them to see if it helps.

They should grow as fast as your B.craniifer. Are they in the same conditions?

Yes they are. That's what is throwing me off