One tank size for life?

[k2l3d4]

If I wanted to keep a Ball Python in one glass display tank its entire life, from hatchling to adulthood, providing all the other requirements are met, what is the best size?

20, 30, or 40 gallon?

Thanks in advance!

(Ideally, I want a larger tank for the purpose of display.)

Well... .lets see here do you want to allow your snake to grow to it's full potential or are you going ot stunt it's growth by keeping it in a tank that is as small as a 40 gallon. I have my two itty bitty garter snakes in a 40 gallon tank and currently have my baby ball python in a 55 gallon and when it gets older I will most likely up grade it to a 100 gallon tank. But see I have a mover a shaker for a baby and I do not want to limit too much the amount that my snake can move around, and I am not planning on limitting how big it can get.