I have cups of European Nightcrawlers I bought from walmart. They're $3 for 30, I think. I haven't seen worms at petco, but I haven't been for a while.

From the 1st cup I bought, that had the best peat moss, I've seen little green eggs. They were in fridge for a while, so I wouldn't expect those to hatch, but since they looked the best, and the only cup I've seen eggs in, I've saved it, with some of the original worms, and after toad ate all 30 from 2nd cup, moved 1st cup and 3rd out of fridge.
I'm not sure how many worms I have left, between the 2 cups. They are at room temp now. I feed mostly from most recently purchased cup. The soil in that one is kind of rocky and dry even when I mist it, and I think they might be older worms. Those were purchased from different walmart than 1st cup (pic below) and I had to root around to find one that wasn't mostly dead or moldy. Definitely check 1st.
They are awesome feeders and Banjo loves them so I don't mind buying them, (from the right store) but my question is, could this egg hatch? Name: DSC00201.jpg Views: 2336 Size: 137.8 KB Would be pretty cool if it did. (just took this pic, egg was sitting at the top.) No dead worms found so far, but no apparent babies that I've seen either. I dampen soil once in a while with treated water. Anything I can do to facilitate hatching? Not really interested in breeding them in bulk, but it would be nice to end up with a whole new cup of worms without going out and buying a whole new cup of worms.