My beardie Athena layed her second clutch on the 10th, and i planned to build an incubator for her clutch. The incubator consists of a styrofoam cooler. There is an aquarium heater rod in the bottom, suctioned cupped to a glass plate on the bottom to hold it down. Water fills the bottom just enough to completely cover the heater (as the heater's directions instructed). I used a metal tray big enough to sit above the water to hold the egg tub. For the egg tub I used a plastic shoebox filled almost halfway with perlite (I poured hot water, let it sit, then drained it). The eggs sat in the indentions i made in the perlite. The lid is on both the egg container and the styrofoam and I have a thermo/hygrometer probe leading right into the center of the egg tub. As far as numbers go, I've been able to keep the temperature in a safe range between 83-86 degrees fahrenheit. As far as the humidity goes, I've been having trouble. Its been getting up to 90% and I'm not sure how to lower it. Whenever I remove either lid, the temperature drops too much, and I don't have any other ideas. I'd really appreciate any experience/advice/ideas! Note: The eggs all still look healthy, but i don't want to risk drowning them. Thanks!