looking to add a boa

[Evenstar]

No boa should live it's whole life in a 41 qt tub. Even male BCI's and "dwarf" subspecies will generally get too large for 41qt. Boas are not balls and, while their general care requirements are similar, they do not do as well in tubs. The smallest size cage you should consider for most any boa is a 4x2x2 or similar size. AP makes some good enclosures - but for a BCI I strongly recommend a T12 or T13 for your adult enclosure. Male BCIs will generally stay around 5-6 feet, but there are some individuals who can easily reach 8 or more feet.

Now if you start with a baby, putting it in a 41qt rack will do just fine for it's first 1-2 years. You CAN grow out a boa in a 41qt tub and it'll do just fine - just don't think that a 41qt will do for it's entire life.

Rainbow boas in particular do NOT do well in a rack system. Tubs are fine, but it should have some height to it. BRBs are semi-arboreal and should have the opportunity to climb. Most boas will, in fact, climb if given the opportunity which is partly why a PVC enclosure is a better setup for them then a rack.

You could get away with a T10 if you choose a male "dwarf" subspecies of BCI such as a Hog Island or Nicaraguan or if you're interested in a different species, a Dumerils is a great choice! A BRB can also do ok in a T10, but I'd recommend a cage with more height to support their nature to climb. Dumerils are ground boas and do not have that propensity.

Incidentally, there is no such thing as a "dwarf boa". Some subspecies of BCI stay smaller than Colombian BCIs, true red tail BCCs, or Argentine BCOs. These subspecies are often part of the insular localities such as Hog Island, Pearl Island, Saboge, Nicaraguan, or Central American subspecies (these "dwarf" localities are all BCIs). These subspecies are often referred to as "dwarf" even though the moniker is somewhat misleading as they really only average slightly smaller than the average BCI. For example, a Colombian BCI will attain lengths of 6-7ft for males and 7-9ft for females and Hog Islands will generally average 5-ish ft for males and 6-7ft for females and many times individuals of any of the "dwarf" subspecies can get much bigger than expected.

Hope this all makes sense! Beware - boas are like potato chipss! You can't have just one.............