Humidity in egg tub?

[snakesRkewl]

I don't use anything but a 7qt locking lid tub and I even add holes to lower the humidity a touch to prevent mold.
You do not need 100% humidity to hatch eggs, I've had eggs hatching perfect with 85 to 90 percent humidity.

There's a lot of ways to set egg tubs up, you kind of have to play with it well in advance of having eggs in it so you can get your humidity and temps where you want them.