Colubrid eggs are real tough. But why would you want to rotate them?

I had clutches get down around 33F and still hatch. I have shipped kingsnake eggs and they were fine. I think perhaps tropical boid eggs are the ones that are more sensitive.

Colubrid eggs are tough as nails.
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FR quote:
"Doing the same things over and over expecting to learn something else, is the definition of insanity"