The humidity in my incubator spiked up to 80% for days 9 and 10 of the incubation period (80% for two days ) it is now running stable at 50% after buying a Hygrometer and making the necessary adjustments. I had a number of eggs in my large incubator and after candling noticed that a lot were not fertile. To save running a large incubator with only a small number of eggs I transferred them into a smaller incubator that I had never used before this. I then noticed the clear window was getting quite a lot of condensation and became worried about the Humidity and so brought the Hygrometer which I should have done in the first place. This is my first time hatching eggs so it is all a learning experience. So after my explanation here, my big question is can this 2 day spike be a problem for the eggs.