In my opinion....
While mealies should not be fed as a staple--there is nothing wrong with them being part of a balanced diet. Steve and I do not agree on this---it's a famous disagreement here on RTB

Whatever you decide about mealies--please feed a variety of greens, flowers, pellets,
crix and worms (so many types of worms). I also believe in feeding whole prey once in a while as well. A really varied diet will help the whole digestive track run smoother---but this is a varied thought.
Many people believe alot of different things.
What we agree on though---is GREAT lighting, varied plant matter and some protien make for a healthy dragon. The details are up to you to uncover

Do your research and most of all, pay attention to anything you have learned from all species of lizards.