I usually try to keep my humidity at 50% during incubation but I dont have a Brinsea yet. Mine will be here Wednesday. Cant wait for itI need help with my incubator. I keep getting around a 50% hatch rate and cannot figure out why. I do better in my little giant, then my Brinsea. I set the humidity at 25-30 the first 18 days. Take it off the auto turner, and remove the rails on day 18, bump the humidity up to 65% give or take a few. The temperature the whole time is 99.5. I also do not open the incubator until everyone has hatched. I do candle and get rid of Any eggs that are infertile or that stopped developin. Any suggestions? I think I just have a bad unit....