The humidity is up in the 70's how do I lower it without taking the sponge and water out completely? No eggs in yet because I am trying to make sure all the temps and numbers are right. Last night the temp hit 103 so I unpluged it and started over. What about air movement inside my styro incubator, do I need it? Found a battery operated room freshener that still works and will give some air movement. Should eggs be placed on wire rack in order to have even temp. around the egg? There is condensation on the glass so if I open the lid too long I loose heat. Kids are doing this as a science project and I need answers by 3/12/2016.