Ah, there's a problem. If you don't gutload the crix they are nothing more than empty crunchies with a bit of calcium or vitamin dust on top. Dusts can't provide all the needed nutrition, they are meant to fill in some nutritional gaps. There are good gutloads and terrible ones. Most gutloads at pet shops are terrible and incomplete. You can do a lot for your feeder quality by getting the insects a few days before you need them and feed them with fortified cereal grain (like Total), fresh dark leafy greens like kale, Romaine or leaf lettuce (not iceberg), a wedge of orange, bee pollen, and a bit of flake fish food. Plus, feed your crix and they live a lot longer!