Argentine Boa
Argentine Boa
(Boa Constrictor Occidentalis)
Native to Argentina and parts of Paraguay, the Argentine Boa is a rare and protected subspecies of the Boa constrictor complex. Known for their striking black and white pattern and heavier build, these snakes are powerful constrictors that are less commonly seen in the pet trade. Though their temperament can vary, many captive-bred individuals become quite manageable with regular handling.
Lifespan:
Typically 20–30 years in captivity
Sexing:
Males are generally smaller (6-8ft), females larger (7-10 ft). Sexing should be done by “probing or popping” by an experienced keeper or vet.
Enclosure:
Juveniles: A 40-gallon terrarium (36” x 18” x 18”) with plenty of hiding spots.
Adults: A 6x2x2 foot enclosure with a variety of substrates, large hiding spaces, and room to roam.
Substrate:
A mixture of coconut fiber, cypress mulch, and soil is ideal for creating a naturalistic environment that retains moisture.
Spot clean regularly, replace fully every 4–6 weeks.
Lighting & Temperature:
Basking Spot: 88-92°F.
Ambient Temperature: 78-82°F
Cool Side: 75-78°F.
UVB Lighting: UVB is not required but can be used for natural day/night cycle.
Humidity:
Maintain humidity levels between 50-60% to mimic their tropical environment. Increase humidity to 65-70% during shed. Mist the enclosure regularly and provide a water dish for hydration.
Always monitor humidity levels with a digital hygrometer.
Food:
Feed frozen thawed rodents of the appropriate size (About the same width as the widest part of the snake)
Juveniles: Feed every 5-7 days
Adults: Feed every 10-14 days
Water:
Provide fresh water daily in a shallow dish. Use a heavy dish to avoid tipping, and replace water daily or when dirty.
Supplementation:
No additional vitamins and minerals are needed when feeding whole prey items.
The Argentine Boa is one of the darkest boas in the world, often appearing nearly jet black as adults with subtle white speckling or banding. Their dramatic contrast makes them a standout in any collection—and their conservation status makes them a treasure among breeders.