I'm raising some baby garters, captive born in mid-July, all have been doing well. I bought "Canadian nightcrawlers" recently from a pet store, fed pieces of them to one group of snakes and lost two (out of four) snakes within three days - all were very active, healthy and feeding well; after this feeding one died within 12 hours, the other two days later. The remaining two snakes from that group seem OK. My other baby garters are housed in the exact same type of setup, but were not fed these worms and all are fine at this time. I am assuming it's something with these worms - some kind of toxin? Possibly a pathogen? Has anyone heard of this or had a similar experience?