Hi all, Dave here. I am hatching eggs in an incubator for the first time and would like to candle them to see what is going on, but I'm not entirely sure what I should be looking for. I am a little nervous after earlier reading a comment suggestion that bad eggs could explode. I think I'll be wearing goggles whilst turning the eggs later So what do I look for? What suggests a good egg and what suggests a bad egg? What stages in incubation are best for candling and is there any time when it would damage the development of the chick?