He looks thin in that first picture (better in the second) but he doesn't look emaciated. Not having pooped in less than a month isn't a big deal, either.
You can go to feeding him every 5 days or so, and weigh what you're feeding him to see how much IT weighs to get a rough idea of size meal he should be getting (should be 10-15% of his weight, roughly, so between 20 and 30 grams) but honestly? He's eating, he's growing. Feed him well, maybe up the feeding size or frequency a touch, and if he continues to seem thin/small or you're worried get a fecal done to check for parasites.
(As an aside, my guy was 300 grams in early March and has doubled his weight since then - and he IS a fussy eater that didn't eat for a month and I've only now gotten onto rats. A lot of people 'maintenance feed' young snakes for sale. Not a big deal, really, and growth takes off when they're being fed more appropriate sized meals).
Reply With Quote