Also did you buy this animal as a Captive Breed or Captive Hatched meaning the seller knows that the parents were in captivity when it was born or was it a Wild caught baby. three week is a little soon for my tate to be selling an animal. Most breeders will wait till they get 5 or 6 good meals in them before selling them. If this animal want feed in the next week or so contact the breeder or seller and see if they can offer some help or as a last resort a replacement animal.