You'll just feed mealworms to the new cham? You'll need a more varied diet than that. Crickets, supers, dubias when ready, silkworms, hornworms, mantis, phoenix worms, etc. are all great feeders. I believe mealworms are one of the worst feeders. Someone please correct me if I'm wrong.
You'll need to make sure to gut-load what ever it is that you decide to feed off. I know that there is a great blog or post about this. What kind of Cham will you be getting?