instead of perlite is it okay to use vercumulite for my venus flytrap
I think either concrete or vermiculite would be the best , in that order.
There are three basic mechanisms for heat transfer: conduction, convection, and radiation. Air is a worse thermal conductor than styrofoam, but convection dominates if it is allowed to flow (hot air rises, for example). Porous solids such as stryofoam are more effective than air alone because they entrain the air, preventing convective heat transfer.
The Pink Panther recommends fiberglass insulation, 6-9 inches ceiling, 6 inches floor, and 3 inches walls.
