Ok so my first batch is in the bator on day 2. What am I looking for when I candle dark eggs? Just a dark mass? Or what? If anyone has pics that would really help and I will post pics (if camera cooperates..lol) so maybe you can see what I don't. I really don't even know if they are fertile. How do you tell if they are? Being clear when you candle is quite vague being that every egg has a yolk. So any help please!!!! Thanks in advance.