Incubating button quail question

[ModernGameGrl]

So I'm incubating button quail for the first time I set 20 shipped eggs 3/21. I candled them for the first time tonight and pulled 5 clear ones and I went ahead and eggtopsied them. If they had started and quit I would see veins or blood spots correct? Two of them just had watery yolks, two were thicker with white spots the last one had a tiny blood spot but had dried up that one also was cracked so I'm sure that was the problem. Where the others just not fertile or does it sound like I did something wrong? The rest of the eggs are either dark except for the air cell or are to dark to tell anything.
Other info: little giant forced air unit with egg turner, temp 99-100F, humidity 50-60%
Any input would be great

 

[teradragon]

Sounds like they were infertile. Sometimes you can get blood spots in yolks without the egg being fertile. I think a blood ring signifies early stage death, but I'm sure someone with more experience will chime in soon!