Hi! I'm new to hatching and forums and I need some advice. My friend and I are making a homemade incubator to hatch chicken eggs but I can't manage to get the humidity up. The incubator is made from foam board insulator with a 30w bulb which keeps the temp at around 37°c-38°c... That is until I spray water into the incubator (I have a water dish but without spraying it stays around 19% humidity)when I spray water the temp drops to about 30°c. Any advice on getting the temp and humidity right? I was thinking about adding a layer of plastic. Like a garbage bag. Do you think if I use a black garbage bag it would help keep the heat up and humidity in?