A small live hopper would be the best bet especially if he's not already eating f/t. Then the feeding after I would try back with f/t. For me if a snake is under 100 grams I don't like them to miss two meals. While some can and some can't depending on how much under 100g, this is more or less my comfort zone.
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I know. It gets me really super stressed out when my guys skip a meal. It really gets me anxious.