Hello!

As someone new to the realm of snake-husbandry, I had a question about changing snake tank sizes. I currently have my ball python in a 5-gallon tank that the store sold me, then in an amazing fashion told me over the phone that they did not recommend it (mutters)...however, it has displayed normal behaviour (went from cool <=> hot, fed every week) until about its last shed. After its last shed, I lightly changed the arrangement of the tank, and now it spends all its time in its warm hide - but the cool side is warm enough (about 80 - right?). Also: it's longer than the longest side of the tank, and for reason I have it in my head that it is now time to change the tank. Is that right? Do I need a bigger tank?