Depends on who you ask. I won't go below 40 in the Brinsea, but I think I have read that Amy will run dry as long as she is above 25%
Okay is there a danger zone?
rainbows
I cant see anything SC is writing?
I guess I missed the question. Mine last hatch got down in the low 20's and I think my air cells got a little too big. I'd say go by your air cells, if they look like they are growing too large, the humidity needs to be raised some. But an actual number would depend a lot on individual incubators.
I will watch it then thanks. And yes SC you can post the pic.