I also set 18 ameraucana eggs and 6 backyard mix eggs in my Brinsea eco 20 on 03/09! It's my second hatch, had 9 out of 12 hatch on my first attempt. Kept my humidity around 40% until day 19 then kicked it up to 75-80% until hatch. Super easy incubator to use. I'll probably candle around day 5. Crossing my fingers for good fertility with my first batch of mailed hatching eggs. Good luck with your hatch!