Hey there. Actually, most female boas will not reach a greater size like that, but will instead likely top out at about 9 feet. An 11 foot boa (bci) is similar to an 18-20 foot burmese. It CAN happen, but usually doesn't. So if you got a female colombian red tail I would confidently say that it might reach 8 or 9 feet at 6 to 10 years and pretty much remain that size (might grow a little, but not a lot) for many years to come. Personally, however,.. I love boas,. and I have MANY of them represented by many different species, but I consider them to be a lot more unpredictable than burmese. I have had what I consider to be "dog tame" boas in my arms suddenly strike out at a passer-by. It blew my mind and I trust them a lot less in general. They also tend to be a lot more spontaneous in their feeding responses. Strike first, ask questions later. Burms tend (on average) to identify their food first, via smelling, and then striking at it. To me this is a lot safer.
Just my thoughts on the two snakes. Just take your time with your decision and think it through very carefully before you make your purchase.
>>I got to hold a 11 foot columbian red tailed! iT WAS SO AWESOME I GOT TO RESPECT A LRGE SIZE SNAKE, I loved it so much this makes me think about it more i don;t know if i want a burm or a red tailed, if i get a male burm or a femal red tail they'll both grow to about the same size but i;m not sure which 1 i want... any suggestions?
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"Sure,... you say that now. But what will you say when you are looking into my dark, merciless eyes." [Walter Wego]
"Charlie won because we never knew where he was. We had superior numbers, but he had stealth, patience, and sheer determination to prevail. We lost the moment we decided to engage, only it took us 10 years to lie down and die." [General Enevi Tability on the Vietnam war]