Help Identifying Nightcrawler

[randok]

Can anyone help identify these nightcrawlers?

I bought them from a local pet store labeled as "Mini-Crawlers". They're roughly 4.5" long.

They also carry "Canadian Nightcrawlers". Both are from the same farm/company called Sure Ketch. Eisenia hortensis? Lumbricus terrestris? It's hard to tell.

 

[Jennewt]

Yes, they are just the younger/smaller Lumbricus - Canadian nightcrawlers. I've used them, they're good.

 

[randok]

Okay great thanks. This is the second tub I've bought, my newts love them. I was hoping they might be Eisenia hortensis so that I could culture them. From what I've read on here L. terrestrius is difficult.