That was the kind I've been considering. From what I understand they don't heat well through the AP cages but I read they can be placed inside the tank so I'm considering that. I figure since the girl is so little she can stay in her tank for a bit longer. I can put Loki on one side if the divider, get the heat pad stable then move him back to his side then do the same for my girl then move her into the T8. Do they have any physical stores that sell them? I would prefer not to wait on shipping.