It's been about a week since my dragon has pooped. He's about two years old; I adopted him about three months ago. He's kept on sand; which is controversial I know, but that's what the previous owner kept him on without any problems. He eats a green; kale, collards or mustards every day, which he seems to like very much. Occasionally I will put in some other type of veggie/fruit (from the approved list) with his greens but he rarely ever eats that. He gets dusted and gut loaded bugs (crickets) every other day or so, and a couple days a week I treat him to several superworms. He's in a 75 gal tank, with an appropriate temp gradient and hot spot. Any ideas? And is this a bit of an emergency, and should take him to the reptile vet? Thanks for any responses. ** I forgot to mention in original post: He is in the middle of a shed... This is my first dragon so I'm a little nutsy about his care.