So, I have my doubts about these eggs from the start, as I had a pretty bad temperature fluctuation over the first night. I'd stuck around for a few hours, the night before, just to make sure it stayed where it was supposed to, and the next morning I checked on them, and they were at 110. Instantly opened the box, and let them cool until the thermometer read 99.5, and temp/humidity has been perfect ever since. Well, humidity keeps fighting me at 50 and 60%, and doesn't want to stay at 55, but it's close. Anyway, It's day six, and candling shows nothing but yolks. Most are pretty slow to move around the side of the egg when turned, and one or two move freely. I'm thinking that if any of them survive, it definitely wont be those two. How much, if anything, should I be seeing during candling at day 6? I'm not sure what breed these ducks are, just that they were indeed, fertilized. I've seen plenty of photos saying that seeing the yolks is good, and how they're supposed to move when turned, but i've also seen a few photos of successful Day 6 candlings, and they don't look anything like mine. Any insight would be helpful.