Yeah, I have read Vinny's book and also another one. Also, since she's a female, I think a 6 foot tank is called for given that they are active and curious and utilize both floor space and air space. I do not believe that keeping a 7-8 foot long snake in a 4 foot enclosure is a good thing; the least I would go is 5 feet.....so I will hedge my bet on her adult size and give her a 6 footer!