I would say yes it's possible to overfeed him.
Consider his size and then consider how big his stomach probably is.
Although you may have overfed him just a little. A 3 day period off food especially night-crawlers should be enough time for him to have digested most of it, and possibly left behind some poop.


at 13-15 inches I would say 1 whole NC cut or uncut should be a sufficient meal for a 3 day period. Or 1 pinky mouse every 5th day. Others will also have their opinions and I would just keep soaking up information as you have been. I hope Scar will be ok... Just keep a close eye on him and probably let him rest. Talk to him... They like attention