Boa in a 41 qt tub?

I have a spare tub in my rack (41qt) and was thinking about getting a baby BCI. I was just curious about how long it would be able to live in there before needing to be moved to it’s adult enclosure? I’d rather to get a female preferably, I know they get bigger than males. I just want to be prepared for when it needs a larger living space!

I have a three year old BI female in a 41-qt tub. She'll need an upgrade soon.

I feed my boas very conservatively though. Some people like to feed heavily to get them up to size/weight for breeding but I keep mine lean.

My male BI will be 3 years old in September and he has officially outgrown the 41 qt. rack. I will be building him either a 4' or 6' x 2' x 18" PVC enclosure soon...