Well, you can't guarantee the size of a snake. Generally, females get bigger than males. Yes, I do believe that there are sub-species of RTBs that are generally fiestier, can get bigger, or smaller. If you want a generally docile snake, then I would go for the Columbian BCI, they range from 6-9 feet.Originally Posted by mikeraach
These snakes can grow VERY rapidly. They reach up to 3-4 feet in the first year. I suggest a plastic tub if you want a BCI. You can keep it in a Sterlite 1960 for a whole year. It is much cheaper, but also it saves space and might make it easier for you to heat the enclosure. If you don't think you have room now for a 4'x2'x2' cage that you will need by the end of next year, then don't get the snake. Wait until you have enough money, space, and time for it before you go make the purchase...