Yep Anna I was gonna build one but then I foundout that Tim was getting out so I jumped on it. I was feeling good about the temps 89 in the top and bottom tub with 99 % humidity. Then someone posted that the accurite was only accurate +/- 4 degrees now I don't know. I guess I should check it with my temp gun. I have the unit in the top tub and the probe is in the bottom tub. oh and I bought a light diffuser I'll cut it tomorrow. Now do I just sit the grate on top of the vermic?