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Description
B.C.I (Hypo Aztec Het Moonglow)
Scientific Name: Boa constrictor imperator
Common Name: B.C.I, Hypo Aztec Het Moonglow
Species Overview
Size: Adults typically reach 6–8 feet (1.8–2.4 m) in length, with females generally larger than males. Adult weight ranges from 15–30 pounds, depending on genetics and husbandry.
Appearance: This morph carries the Hypomelanistic and Aztec traits, resulting in lighter, muted tones with high-contrast saddles and clean, geometric patterning. The Het Moonglow gene is carried but not visually expressed. The combination produces a visually striking boa with clear, bold markings.
Distribution: Native to Central and South America.
Habitat: Occupies tropical lowlands, forest edges, and semi-arid regions, often near rivers or scrub forests.
Behaviour: Primarily nocturnal ambush predators, feeding on small mammals, birds, and reptiles. Excellent swimmers and climbers, though adults are mostly terrestrial.
Captive Care
Enclosure: A naturalistic setup is strongly recommended. Adults should have at least a 6′ × 2′ × 2′ (183 × 61 × 61 cm) enclosure with sturdy branches, hides, cork bark, and plant cover. Bioactive environments with soil substrate, leaf litter, and live plants help maintain humidity and provide enrichment.
Temperature and Humidity: Maintain a gradient of 80–85°F (27–29°C), with a basking spot of 88–92°F (31–33°C). Nighttime can drop to 75–78°F (24–26°C). Humidity should remain between 55–70%, with access to a water dish large enough for soaking.
Lighting: Standard ambient lighting is sufficient. Low-level UVB is optional but can benefit live plants in naturalistic setups.
Diet: Juveniles feed every 7–10 days on appropriately sized rodents; adults feed every 14–21 days on larger prey items.
Behaviour in Captivity: Hardy and generally tolerant of handling. With consistent, calm husbandry, most individuals become manageable pets.
Special Considerations: Due to their potential adult size of 6–8 feet (1.8–2.4 m), planning for future housing is essential. Handling large adults can be challenging; having a second person assist is recommended for safety and stress reduction.
Taxonomy Note
Boa constrictor imperator belongs to the family Boidae, a group of non-venomous constrictors native to Central and South America. Members are known for ambush predation, terrestrial and semi-arboreal habits, and long lifespans in captivity. This morph demonstrates selective breeding while retaining typical B.C.I behaviours.

