I followed the Wikipedia Instructions on how to make an Incubator. My last made incubator was small, barely fit a dozen eggs. This one is about 2-3 times the size of my first. I also use a nightlight as the heating implement, instead of a normal light. Last time i used a normal light bulb, was when i was first used my first incubator, i cooked the eggs. But this one is hard to get correct, I put a huge whole in each side, i even leave the lid open. But the two eggs are doing great, developing slowly, but doing great. I really hope they survive, theyre the only things i have left of my Silkie Rooster(was my only rooster, but my Favorite Rooster) and my Pullet(id had her since she was a chick, she'd just started laying too), but they were eaten by a Raccoon.
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Did or are you using a thermostat----what kind----I see the thermometer? I think you did good by getting 2 to hatch---there is no way to control the humidity with the lid partly open or the glass slid open etc. The fan is huge. You have your thermometer on the far side----I feel it would be best to check the temp in this about middle of the eggs being your heat is on the side---the eggs closest to the heat/light is probably a lot hotter.