They say 1 dubía equals 12 dubía of the same size so of he eats one that's good and Nightcrawlers are harder to get going and established then red worms but it's possible I had them going years ago under my rabbit hutch tons of them along with reds. I tried 5 months ago to get them going in a bin from Walmart but after 2 months for whatever reason they all died. It's worth a try.

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