He looks a little thin. It's probably not a fresh hatchling, but just not fed enough for how fast they grow in their first couple months+.. I'd feed him mouse fuzzy/hoppers every 5 days. Just one. He looks to be at that size for hoppers. Just thin. Then after about a month he should easily be able to take rat pups/fuzzies. I'm sure he could now but with being a little thin, I'd want to get some grams on him first.

With babies it works much better to feed smaller meals more often. They will absorb more of the meal this way. Less poop, and more eager to eat. plus they grow very well this way. Whereas if you give it a larger meal once a week you'll notice it poops larger, and seems less hungry less often. Grows slower.

Good luck with the little one. It is a cutie.