This was my first year breeding as well. I also used a cooler incubator and noticed the exact same thing with my temps...would go from 89-90 every so often. I used cling wrap as well as a lid on my egg box. I just took a paper towel and wiped off the condensation that built on the cling wrap when I aired out the eggs. I also wiped off any drops that got on the eggs as well from opening the box. Out of 7 eggs all 7 hatched healthy babies. Good luck to you!









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