Boas & Pythons
Common Boa, Boa imperator
IntermediateThe common boa, sometimes called the “red tail” boa, is a medium to large snake from Central and South America, as well as parts of Mexico. It is often confused with the Columbian or true red tail boa, Boa constrictor, of which it was considered a subspecies until relatively recently. Despite their size, common boas can make an excellent choice of pet snake for novice keepers due to their generally docile nature, hardiness, and longevity.
At a glance
- Origin
- Mexico through Central America to northern South America
- Size
- 6-10 feet. Females are larger than males. Dwarf localities 5-6 feet.
- Lifespan
- 20-30+ years
- Basking Temperature
- 88 degrees maximum
- Cool End Temperature
- 80-82 degrees
- Humidity
- 60-70%
- Substrate
- Coco chip or cypress. Paper is acceptable for adults.
- Baby enclosure size
- 20” x 10” x 12” – 30″ x 12″ x 12″
- Adult enclosure size
- 6’ x 2.5-3’ x 1-2’
This guide is a brief overview of basic care and minimum husbandry requirements and is not intended as a comprehensive guide to care. Our best advice:
Read, read, read! Studying about your new pet is the key to a long and happy life for them, and years of enjoyment for you.
Housing
Enclosures for boas must be long enough for the boa to stretch out fully and exercise. Upgrade your boa’s enclosure any time they are no longer able to stretch out. Avoid glass aquariums with screen lids as they do not hold sufficient humidity. Boas appreciate the opportunity to climb. Provide a hide at both hot and cool ends.
Substrate
Coco chip and cypress both make excellent and great looking substrates for most boa enclosures. Aspen will work if the humidity is too high, but it must not be misted as it will mold quickly. Remove any wet or mildewed aspen any time you notice it.
Heating and Lighting
Provide a basking spot at one end regulated to no more than 88 degrees, with a cool end of 80-82. We prefer heat panels as a heat source for plastic and PVC enclosures. A dome light with a ceramic heat emitter is preferable for front opening glass enclosures. Use a thermostat to regulate the temperature with the probe secured directly in the basking spot. Do not guess! Do not use only a thermometer. Overheating can be quickly fatal for your new pet. Night drops in temperature are not recommended. Boas do not generally require a UV light, but may benefit from one.
Humidity
Humidity should be maintained at 60-70%. Place a good quality hygrostat in your boas enclosure to monitor humidity. Using the correct substrate and misting occasionally is usually sufficient to maintain appropriate levels. Do not mist aspen.
Water
Provide your boa with a non-porous water bowl and change it frequently. Snakes frequently defecate in their water bowl, so frequent disinfection is essential. We recommend F10 Veterinary Disinfectant, diluted according to the directions on the bottle.
Handling
Boas are generally docile snakes, but they typically have strong feeding responses. You should study and practice tap training with your boa. There are numerous resources available online to show you how to do this, and you should be consistent in practice. Support your boa’s body when handling. Do not let them dangle loosely. Boas use their tails to support themselves, so expect that they will grab ahold of your hand, arm, or clothing when being handled. Boas should not be allowed to wrap around a handler’s neck as they can restrict airways in the process of supporting themselves. Instead, support larger animals over one shoulder and under the other arm. Children should always be supervised when handling snakes. Do not handle them while they are in shed or right after meals.
Feeding
Allow your new snake at least a week to adjust to its new habitat before feeding. Mortal Coil Serpentry supports feeding frozen feeders. Your new pet is already feeding on frozen thawed. Live feeding is not recommended. Warm frozen prey to a natural body temperature (~90 degrees). Do not feed your snake from your fingers. Present prey with tongs, holding it by the base of the tail, and wiggle gently in front of the snake. Do not handle for at least 24 hours after feeding. Young boas do best on mice, but should be transitioned to rats by the time they are big enough to eat large mice.
Hatchlings to 1 year: 1 rodent the approximate girth of the snake once per week. Mice and African Soft Furs are superior to rats of equivalent size for nutritional value. Baby quail may be used to add diversity to their diet.
1-2 years: 1 rodent the approximate girth of the snake once every 2 weeks. Poultry may be used to add diversity to their diet.
2 years and up: 1 rodent the approximate girth of the snake once every 3-4 weeks. Poultry may be used to add diversity to their diet. Boas are especially fond of guinea pigs, but a diet of strictly guinea pigs should be avoided as they are too fatty.
The correct body shape for a boa is that of a bread loaf: square on the sides and round on top. A round boa is obese.
Common Issues
Feeding Response
These snakes have a powerful feeding response, and most bites from a well socialized animal are feeding accidents rather than defensive strikes. You should study and practice tap training, and there are numerous resources available online to show you how to do this. Never open the enclosure with the smell of prey on your hands, and wash them thoroughly after handling frozen thawed food.
Obesity
Boas are very commonly kept overweight. The correct body shape is described in Feeding above. Obesity leads to fatty liver disease and other serious health concerns, and it will considerably shorten the life of your snake.
Inclusion Body Disease
Inclusion body disease affects both boas and pythons. Boas frequently carry it without symptoms and can appear healthy for years, while pythons and young boas develop acute neurological disease that kills within days or weeks of the first sign. Symptoms include tremors, stargazing, disorientation, regurgitation, abnormal sheds, and an inability to strike or constrict. It passes from a female to her offspring, so an animal can be positive without anyone knowing. There is no treatment and no vaccine. This is the strongest argument for quarantining any new boa away from the boas you already own.
Quarantine
Any new animal should be kept separate from the snakes you already own. A different room is best, but the opposite end of the house will do. Feed and clean your quarantined animal last, and wash your hands thoroughly before you handle anything else.
Ninety days is a reasonable minimum, and your new snake should be feeding consistently before you consider it out of quarantine. Watch for mites, wheezing, regurgitation, and abnormal stool during this period, and consult your veterinarian if you see any of them.