The Crested Geckos can live on a specially formulated Crested Gecko Diet, which is a powder you mix with water to create kind of a pudding for them. They eat it just fine, but they also love crickets. The crickets need to be coated in calcium powder. Calcium is the main thing keeping the Cresteds going, so they need it.

They like to be held, but spaz out at first when you reach in and grab them. Once they're out a little while they calm down.