This cockatiel eats mealworms because since she was a baby, i gave her the worms, but the others thar aren't used to eat the mealworms, they freak out when see anything new in the cage! Sun conures are just amazing! In my granparents farm, every year a couple of green conures reproduce there. Every year about 3 ou 4 green conures born there. I really love parrots, any kind of them: the australians parakeets, cockatiels, red rumpeds, ring necks, conures...And now I'm starting with the quails, and I'm already addicted to them! I'll restart my mealworm box, but it will take some months until I can give them almost daily or at least 3 times a week. About the calcium, I'm giving egg shells with the food, and it will be a little hard to find this powder in Brasil as lizards aren't common pets here... Just the egg shells are enought, don't they?