I'm trying to set up my still air LG to be a hatcher basically following ChooksChicks' incubation guide. (Thank you, ChooksChicks!) I've got the bottom trays full of water & paper towels; paper towels covering the floor, some of which are absorbing water from below the grate; and a maybe 3" diameter plastic bowl with crumpled strips of dish towels half-filled with warm water (covered with a plastic strawberry basket to keep chicks out).
With that set-up, humidity is 50% according to my new digital hygrometer. It seems that I've been basically dry incubating; with the new hygrometer, it appears that humidity was probably in the 20% area for the first week and 30% for the second week. My developing eggs have been, on average, losing weight at a rate that will have them losing about 16% by hatch, which is a bit much.
Will 50% humidity during lockdown suffice, or do I need to come up with another source of humidity?