Urgent Help needed On Day 18 in Incubator and found a bad egg

[kodipilla]

I am on day 18, and I have 12 eggs in the incubator. Suddenly I noticed one egg that had green sports-like pours on it. I suspect it is a bad egg, but I am not sure if it is really a bad egg. I candled the egg carefully and found that it was dark with an embryo and an air sac. I did not see it moving when I tested watching it for close to a minute. I replaced the egg as soon as I tested it. Now I am very confused about whether I still have to keep the egg in an incubator or not. I am more worried about egg blasts in the incubator, whether it is a bad egg or spreading bacteria in or out of the egg. Please help me. What can I do now? I am in lockdown stage now. I am attaching the photos for your reference.

 

[LaurenRitz]

That egg does not look like day 18. I suspect it quit around day 14. If you really want to keep it, isolate it in a jar or cup, or even a paper towel over it. I personally would remove it.

 

[kodipilla]

Thanks for the response. I reverified the movement and removed it. What may be the spots?

 

[LaurenRitz]

Could be a number of things. Likely nastiness seeping through from a rotting egg.