Its going into 5 days today. I should see a LOT more than I do. I have FOUR with that tell take spider of veins and two I can see the heart beating in. NOTHING with 99% of the others. Now I wonder if I toss the rest Tuesday and move these Deff fertile ones into the new incubator set up with the new eggs and then move them back to this one for lockdown or just let them sit. Oddly enough, my shipped eggs look the most fertile, and my Ameracauna eggs and sizzle eggs look the most fertile too. Many are just too dark. My husband is going to put a flood light in a heat lamp in a box later for me to see if I can see better through them. But by looking at MANY MANY MANY link and pages, I would gather to say 99% of mine either are completely infertile, or not developing at all.