Well I have a still air incubator that I made in my home. I was told to keep my incubator at 55-65% from day 1-18, then on to bump up to 80-85%. I mean here in Houston, TX our humidity stays at 50% already, so its not hard to had a little water! But it seems like 85% is ALOT. I don't want to drown my little peeps when they hatch. I just threw two of the 8 out because I know they weren't good. They were basically clear all the way, I cracked them open and sure enough there was signs of development from the first few days, but nothing after. But I did see 5 moving for sure, then the 1 that i cannot tell.