It has holes on the bottom... not sure I'd want to block those.It will also help if you put the bator on a nice thick layer of foam, or even some folded towels. They can loose a lot of heat through the bottom. My bator is home made styrofoam, and I have to layer on the towels, set it on a foam cushion due to temp variations with our wood heat. Also, if your turner had a motor which was in the bator, as I assume they all do, that would account for your temp drop. Be extra careful b/c it's super easy to over compensate when raising the temp, resulting in a critical temp spike. The good news is that, at this stage, the chicklets are generating a fair amount of their own body heat, and some incubator protocols even recommend dropping the temp by a degree for hatch.
-Kathy

