Hello and welcome to the forums! Try to feed Cammy different types of bugs and gutload the crickets. They don't have a lot of nutrition on their own. Try check the resources page on here and go to the food section. Good luck! Your friends will learn a lot here! Everyone is really helpful and nice!
Is their a brown for the main color? I don't think Jojo can turn green yet because he turn from light to dark brown but that's it. I think he's too young.