I candled only 4 eggs today cause I was curious but I didn't want to open the bator too much. It's day 6. 3 out of the 4 seemed to have blood-rings. But this is only my second time candling so I'm no expert. I'm hoping I am wrong and they were just veins... But I'm pretty sure. Wah! I did everything right this time. I'm not opening the bator except once every day or two, my temp is at 102, my humidity is between 43-45%. The only problems I had were the first 2 days or so, the temp kept bouncing up to 105. But I just it under control quickly. Could that of killed 3/4 of my 30 eggs!?