I'm trying my first at incubation. I've got a few questions. I made my own incubator with a styrofoam cooler and light bulb and such. But I'm having a tough time regulating the humidity. It claimes it's too low. I don't have a sponge in it in case I don't need it. Should I increase the water amount then? I originally put warm water in it tonight Temperature, I'm working on letting it get accustomed first before messing too much with it. My hydrometer and thermometer is a digital all in one device. Currently the humidity is 34. Help please!