I've bought my nightcrawlers at Wal-Mart the last couple times. I was buying them from a local bait shop around the corner but he wanted $3 for a dozen and Wal-Marts are 20 worms for less. Plus a friend mentioned to look into where the bait shop gets the nightcrawlers because some local shops get the worms from the area golf courses (chemicals), so until I know for sure I've been skipping them. I looked at the baby ones the last time I was there. Is there much difference in the smalls and large? I love the side of the container... "Our worms will catch fish or die trying." I noticed the worms are labeled as Canadian Nightcrawlers but the company selling them is based out of Michigan. Does everyone think these are safe to use as far as chemical free?