I keep several species of chameleons, veiled, panther, and a baby melleri. I prefer roaches over crickets and I currently have a dubia colony. They're slow and my chams are not crazy about them. I do like that they can't climb so it makes cup feeding easy. I'd like a different species. One that is a little more active, easy to breed and maintain, and is large when fully grown. I'm going to need big feeders for my melleri once he's all grown up. I heard red runners can colonize. I can guarantee I will have escapees so I can't have anything with the potential to colonize. I was thinking orange head or green banana roaches. Hissers, though large, have too much chitin. Any thoughts or recommendation? Good places to purchase? Thanks.