Okay. So I received my male Bumblebee yesterday, and due to my UTHs from LLL getting here quite a bit later than anticipated, I had to set up his tub the day I received him. I connected my large and medium (large for hot end, medium for cool end) Zoo-Med UTHs to my Herpstat 2, then adhered them to the bottom of my 31 qt. Rubbermaid tub with the temp. probes mounted in between the tub and UTH. Pictures:



Large UTH - shot from above



Medium UTH - shot from above



Large UTH - shot from below



Medium UTH - shot from below



Here is a picture of the interior setup

I'm using shredded aspen that's approximately 1" in depth. The issue I'm having is the UTHs are not getting nearly as warm as I need them to be. I've had to crank my hot side up to ~103 and my cool side above 95 on my Herpstat, but when I feel them, they only feel warm, and when I feel them through the tub, they're really not affecting the interior temps at all. Both these UTHs have raised the internal temps just 1 degree on each side. My ambient house temp is set at 70 degrees, so that's why I have another UTH on the cool side, but with the temps set like this on my Herpstat:



...it only raises the hot and cool ends to 73 and 72 degrees. WHAT?! Is there an issue with my temp probes, or is the substrate too deep? Is the Rubbermaid tub too thick? I'm stressin'.