Emerald Tree Boa — Fact Sheet

Corallus caninus · Emerald Tree Boa

Full care guide and sources

📋 At a glance

🏠 Enclosure

For an adult, plan at least 180 x 60 x 120 cm. Height matters only if it is usable: provide several rigid horizontal perches at different heights, foliage or visual cover, a water bowl, and service access that does not force the keeper to pull the snake from a perch.

🪨 Substrate and furnishings

Check doors, vents, cable ports, misting-line holes, and lid seams from the perspective of a persistent snake. Arboreal snakes also exploit gaps high in the enclosure, not just floor-level openings.

Behavior must be read in context. Nose rubbing, repeated striking, constant relocation, refusal to perch, soaking, or open-mouth breathing are not personality quirks. Check heat, airflow, humidity, cover, handling pressure, and disease risk.

💡 Lighting

Use a predictable 10-12 hour photoperiod. Low-output UVB is recommended rather than required, and should be arranged as a choice: overlap it with the warm perch, provide shade, and avoid forcing the snake to sit under UVB to thermoregulate.

Ferguson Zone 1 is the practical reference. Measure with a Solarmeter 6.5 when possible, or use conservative lamp distances and replace lamps on schedule. Do not use colored night bulbs; darkness is part of a normal rhythm.

🌡️ Temperature

• Basking spot: 30-32 °C
• Daytime air: 24-28 °C
• Cool zone: 22-24 °C
• Night: 22-24 °C

💧 Humidity and water

Aim for 70-85% humidity with short peaks around 80-90% during shed. The enclosure should dry on surfaces between misting cycles, while the air remains humid. Constantly wet perches, sour substrate, condensation-heavy glass, or stagnant air increase respiratory and skin risk.

Use a moisture-retentive substrate, live or artificial foliage, a clean water bowl, and misting or an automated system if the room is dry. Track humidity at more than one height because arboreal snakes live above the substrate, not at the floor gauge.

Retained shed, or dysecdysis, is usually a sign that hydration, airflow, shed support, or enclosure security needs correction. Do not make repeated forced soaking the normal solution.

🪳 Feeding

Offer prey from tongs at night or dusk, when the snake is alert but not being startled awake. Do not make repeated offerings after a refusal; wait, check husbandry, and try again at the next appropriate interval.

Use a separate feeding log rather than memory. The log should show whether the animal is maintaining weight, passing meals normally, and shedding cleanly.

🩺 Health — warning signs

Common issues include dysecdysis, dehydration, respiratory infection, mites, mouth inflammation, regurgitation from excessive prey size or poor temperatures, perch injuries, and stress-related refusal.

Quarantine new animals for at least 90 days. Imports or animals with vague origin should be treated as higher risk and may need a longer quarantine, fecal testing, and veterinary screening.