Cali King won't eat

[crono_vivi]

Hi, I work at a pet store, and am trying to get our Cali King to eat. He's only 12 inches, and we got him in on 11/18, so I think he's a hatchling. He ate a live pinky right away on 11/19, but I have been trying to feed him since then, but he won't even try to strike at the pinky(he knows it's there too. He'll look at it, then move away). I've heard that hatcling kings want lizards, is that true? How should I go about getting him to eat?

Thanks.