Hi, so, I just sold a leopard gecko on MorphMarket. He's supposed to be going to MO, and the temps there are gonna get pretty low. Obviously I should use a heat pack, but I didn't realize that I didn't have any. So, I know I can't use hand warmers, but I was thinking... Water holds heat really well. What if I take some of the cricket gel that I use for giving crickets water, and heat it up? Will it last long enough/stay warm enough/not get too hot? I can also see where it could turn into a cold pack if it cools down enough, so would that be more harmful than helpful?