lacie, When you feed them, place them in a seperate container so you can be sure. If you ascertain that it is not eating, start looking for lethargy, basking endlessly, breathing through the mouth. Even without eating, he won't starve in a couple of days. Give it a certain number of food pellets every time you feed it. I know exactly what my guys are eating, because I control how much they get. Keep us posted. Checker.