Out of eight fertile eggs, two have made it to day 15, the other six simply didn't develope. One egg is doing wonderfully, it has movement and it's air cell looks lovely. The other one I dropped a couple days ago
Part of the shell 'shattered' but didn't break the membrane so I used clear nailpolish to seal the cracks right away. It still looked good a couple days ago, but tonight when I candled it it was all black inside, I couldn't even find an air cell anymore... does this mean it died?