Hi! My 13 yr old son is incubating duck eggs. Day 29 is Tuesday, April 11th. I understand lockdown starts 3 days prior and we have NO way to check humidity in there. How does he make sure it stays humid enough during lockdown? He candled at days 7 and 10 and all 14 eggs were alive. I HATE to think that we may mess things up now. As much as I freak out thinking of "What will we do with 14 ducklings??!!!" I don't want to lose any either.