I havent hatched ducks myself but tried to look up an answer for you. Looks like 37.5c (forced air)and about 75% rh for lockdown. Which is the same for chicken eggs.They are upright in the carton so I just put the flashlight on top of the egg. It looks like a white circle on top. One egg I maybe see slight movement. I did not see movement in one, and I have one that is further behind and it is moving. I still see the veins in this one and it is not quite filled up with as much darkness. I don't know if I need to remove them from the carton or leave them alone. I used the carton at lock down because I had to travel with them and did not want them to break.
What temp in C and what humidity do you recommend?
But since i havent actually set duck eggs maybe wait for someone else recommendation.
