Well I have some coturnix eggs on day 21 I had four hatch but I had bout a 70% of developed eggs out of 40 when I candled at day 9 (shipped eggs) I've hatched quite a few chicken and guniea eggs in the past but this was my first batch of quail eggs. The four that hatched are all fine running around besides the one that had curled toes I had to put booties on. I cracked open three of these eggs two were fully developed and the other was developed but still had a lot of the yolk on the outside of the chick. From what I could tell the two fully developed chicks didn't internal pip but ill check on the others too. Thought it might have been low humidity but the chicks were slimy and didn't really look like they shrink wrapped. I kept the humidity at 40-50%occasionaly dropped to 25-30% while I was at work. Day 14 i upped it to 60-65% did get up to bout 70% a couple times when I got a little over zealous with water on the rags inside the bator. The bator is a LG and it is a good 10-15 years old which I don't know how much that could have played into this. Keep the temp constant in the 99.3-100.0 range besides when it got opened. I got the thermometer that keeps tracks in the highest it got was bout 100.8. I did open the bator a couple times a day when they was on lockdown to switch out saturated rags until I wised up and just used a straw through the holes. What would you guys say would be the reason the chicks got fully developed then died? I did decide to order a genesis 1588 today off ebay but don't wanna make the same mistake again with the next batch. What do you guys think I did wrong? Would opening and closing the bator on lockdown cause that or is there something else involved?