I'd give them a week to settle before trying again. What type of worms were they? There are toxic worm species out there. The most common toxic worm is used for composting and has red bands running around it's body. They're commonly referred to as 'red wigglers' and used for both fishing & composting. I've heard of snakes regurging these and then not wanting anything to do with them after one feeding. These little guys are not stupid Good luck with your babies and keep us posted on how they're doing!