i was told that width plus length creates the largest amount your snake could be. So could a 6ft (72 inches) ball python live in a 55 gallon because that would be 61 inches if width(13") plus length(48")? because that seems big. She is getting to about 5'7-9" so yeah.

is it kinda like the rule of one inch of fish per gallon in regards to fish, where there are some exceptions?

And also this is just a question thats kinda random, how big of a tank do burmese pythons require. I figure custom made but what size lengthxwidthxheight