I think my brown egg is not fertilized because it’s clear, but it does have an air cell. Debating on removing it now or until Day 18 or 14 if it’s for sure that obvious compared to the others. I took a picture of one egg on the same day as the brown in comparison. I’m on Day 11.
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I agree with @Mylied, I toss the ones that are blatantly clear on day 10 unless it's a Marans maybe, some of the eggs that are like candling rocks it's more of a sniffing for viability than a candling. lol