Last year, when Hurricane Irene hit, we had to think fast in order to evacuate with Parker. I bought a sterilite tub from walmart and set it up with all of the necessities. The only thing was I couldn't get the correct heating pad so I used a back heater. It worked, but was a pain because I had to keep adjusting it constantly rather than have it set up to a thermometer like my ZooMed undertank heater I have in his regular habitat. So now, Hurricane Sandy is making her way toward me and our plan is, yet again, to evacuate. This time, I was able to get a second ZooMed mini under tank heater (the one for 1-5 gallon). I realized though, now that I bought it, I'm not sure where to put it. Do I place it on the bottom of the tub? The instructions say to put it on the side, but that would cover some of the air holes, and I also don't see how that helps with UNDER tank heating. Any tips? What do you guys do to heat your tubs? If it does go on the bottom, do I need to prop it somehow?