If their is no external pip I would do a water test.Hi I am an elementary school teacher. I’m new here but I have a question about my day 22 hatching chicken eggs. Disclaimer I don’t know what breed they are but there were blue/green eggs and light brown eggs. I am using a mini Brinsea incubator. I had 6 fertile eggs and five have hatched. Two hatched yesterday (one the night before) and then three more last night. I opened the incubator and took the chickens out after doing my best to make sure there wasn’t any external pipping on the last egg. After candling the last blue/green egg I realized that the air sac had grown and I could see a chick’s body inside where I hadn’t been able to tell before. I put more water in one side of the water chamber and put the egg back in. I am so worried that by opening the incubator I might have killed the chick or I might have put in too much water. I probablyhad the lid open for about 2 minutes.
Any advice? My elevation is above 4,000feet with a fairly dry climate, except it isspring.