He doesn't look emaciated, he's just not a thick hatchling. He's also balled up, which making it hard to get a good idea of his girth when he's relaxed.

Melcvt00 gave you some good info and asked some good questions. Feed appropriately sized prey items, about the girth of the snake or slightly larger, every 5 to 7 days. He'll fill out for you in not time and grow like a little weed. His condition isn't critical by any means.

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