ventilation is the third cause of chick death at hatch. Having the plugs in now will not make much of a difference but the plugs should be removed at day 10 or so. As long as you can remember to remove them then, you can leave them in.Next question. Do I really take out both plugs?? The instructions said take them out at hatch if needed.
I did get two more thermometers. I'm going to put them in and give it another while.
Most of us do not use the plugs ever.
