Why Did All My Nightcrawlers Die?

[Lija]

Fridge is a must! Left over overnight at room temp they die and be very stinky.

I suspect they dried out, was the soil dry?

Here are good tips in how to keep them longer time Frequently Asked Questions - Canadian Nightcrawlers Wholesale Bait

i usually get bulk amount from them, the longest i kept them was close to 4 months until they were eaten.

[Hypnotic]

At first, all of mine kicked the bucket too. I kept them in my reptile room at 78° (boy, that was a smell I'l never forget.
I now keep them in the basement and they last months!