i built a new incubator today went by MISS PRISSY plans.i had a styrofoam fish container it is kinda big but free. it is 24LX20WX18H the foam is 2 1/2 in. thick. My problem i cannot get temps right. I bought the same thermostat and have a acurite thermometer with the cord inside the bator.My temps. range from 91 degrees to 103.5 i could not find a water wiggler. My question is, is this a good range for hatching eggs does your incubator work this way I had to go to a 75w bulb also thanks for help. GREAT PLANS TO WORK WITH THANKS MISS PRISSY.