White-lipped pit viper — Care Sheet & Morphs

Husbandry requirements

White-lipped pit viper — origin: Southeast Asia: southern China, Vietnam, Laos, Thailand, Cambodia, Myanmar, northeastern India and Indonesia. Occupies humid forests, forest edges, bamboo groves and agricultural areas near water..

Terrarium temperature gradient

Night min22 °C

Cool side24–26 °C

Warm side28–30 °C

A tropical, nocturnal, forest species: a gentle thermal gradient, NO true basking hot spot. Do not exceed ~31 °C on the warm side. Use heating regulated by a thermostat and shielded from any direct contact to avoid burns. A slight nighttime cool-down is beneficial.

Enclosure (adult)

60 × 45 × 60 cm

Arboreal: vertical (tall) terrarium, densely planted, with numerous horizontal branches at different levels.

Minimum for an adult; favour taller (90 cm+) to encourage climbing and ambushing. SECURITY IS IMPERATIVE (VENOMOUS species): lockable terrarium, fully escape-proof (seals, fine mesh vents), danger signage, remote-access protocol (hook, long tongs, hatch). In France and the EU, keeping a venomous snake requires specific authorizations (certificate of competence + establishment opening permit) — comply with local regulations.

Humidity

65–85 %

High humidity but with VERY good ventilation to avoid stagnant air and respiratory infections. Daily misting (morning/evening); let the décor dry partially between two mistings.

Substrate

Coconut fibreOrchid / pine barkSphagnumForest potting soil (bioactive setup possible)

Substrate that retains moisture without being waterlogged; add moss and dead leaves for a humid microclimate. A planted bioactive setup helps stabilize humidity and hygiene.

UVB

Optional

Not essential (nocturnal species) but low-intensity UVB (Ferguson zone 1, UV index ~1-2) is beneficial to calcium and vitamin D3 metabolism. Photoperiod ~12 h, subdued. Provide dense shaded areas.

Water source

Always available

A large container of clean water available at all times, renewed regularly. The animal drinks mainly the droplets deposited by misting on the foliage and branches; daily spraying is therefore essential to its hydration.

Origin

Viperidae (sous-famille Crotalinae, crotales / vipères à fossettes)

Southeast Asia: southern China, Vietnam, Laos, Thailand, Cambodia, Myanmar, northeastern India and Indonesia. Occupies humid forests, forest edges, bamboo groves and agricultural areas near water.

Feeding & health

Diet

Carnivore (vertebrate eater) — Rodents, birds, frogs and lizards (juveniles often oriented toward amphibians/lizards)

Ambush predator. Feed thawed/dead prey of suitable size (≈ body width) with long tongs, every 7-14 days for an adult (less frequently for a non-breeding female to prevent obesity). NEVER feed by hand: the strike reflex is fast and the venom is medically significant.

Breeding

Viviparous

Breeding is often triggered by a slight thermal/photoperiodic drop and a simulated rainy season. Gestation of about 5-6 months; the neonates (~15-20 cm) are fully venomous and defensive from birth — the same precautions as for adults.

Health watch points

Respiratory infections (insufficient ventilation / stagnant air, poorly managed humidity)
Dysecdysis (incomplete sheds) linked to too-low humidity
Stomatitis / 'mouth rot' (often secondary to stress or oral trauma against the walls)
Internal and external parasitism (very common in wild-caught animals, the majority of the trade)
Dehydration and food refusal due to acclimation stress

Morphs & genetics

Registry of 2 documented genes for White-lipped pit viper.

Albino (T-) amelanisticRec
Aberrant PatternDom

Pairing calculator

Pick each parent's genotype — clutch probabilities update live. Free, no sign-up.

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White-lipped pit viper × White-lipped pit viper

Probabilities per gene (independent loci).

Expected clutchSelect at least one gene on a parent.

Frequently asked questions

Answers to the most common questions about keeping the white-lipped pit viper.

Is this snake really dangerous to humans?▾

Yes: the white-lipped pit viper is a venomous snake with anterior fangs, whose haemotoxic venom causes pain, swelling and coagulation disorders, and which is responsible for a significant number of bites in Southeast Asia. Its keeping must remain the preserve of keepers experienced in hot-keeping, in a locked and secured terrarium, with a hook and long tongs for any intervention, and never any bare-handed handling. In France and the EU, keeping a venomous snake requires a certificate of competence and an establishment-opening permit: look into this before any acquisition project.

What size does it reach as an adult?▾

It shows marked sexual dimorphism: males stay slender, around 60 cm, with a fine white stripe along the flank, while females are much more massive and measure 80 to 100 cm, sometimes up to about 105 cm including the prehensile tail.

What terrarium does it need?▾

A vertical arboreal terrarium of at least 60 x 45 x 60 cm for an adult, densely planted and equipped with several horizontal branches at different heights; it is better to aim for 90 cm in height or more to encourage climbing and ambush postures. As a venomous species, the setup must be completely escape-proof, lockable and clearly marked, designed for handling exclusively at a distance.

How should heating and temperature be set?▾

It needs a gentle gradient rather than a true basking hot spot: around 24-26°C on the cool side and 28-30°C on the warm side, never exceeding 31°C, with a slight night-time drop down to 22°C. Heating must always go through a thermostat and stay out of direct reach to prevent any burn.

What humidity level and substrate should be used?▾

It requires high humidity, between 65 and 85%, but coupled with very good ventilation to avoid the stagnant air that favours respiratory infections. A substrate that retains humidity without becoming waterlogged (coconut fibre, orchid or pine bark, sphagnum, or even a planted bioactive setup) combined with morning and evening spraying recreates its forest microclimate well.

What does it eat and how often?▾

An ambush predator, it feeds on rodents, birds, frogs and lizards; juveniles target amphibians and lizards more. It is offered thawed prey the width of the body, presented with long tongs, every 7 to 14 days as an adult, spacing this out further for a non-breeding female to avoid obesity. Bare-handed feeding is strictly excluded.

Does it drink from a water bowl?▾

A large container of clean water must remain available at all times, but it hydrates mainly by licking the droplets deposited by misting on the foliage and branches: daily spraying is therefore essential to its well-being.

How long does a white-lipped pit viper live?▾

Generally count on 10 to 15 years, with individuals able to reach 18 to 20 years in very good conditions. Wild-caught animals, the majority on the market, often have a reduced lifespan due to transport stress and parasitism.

Can it be handled like a non-venomous snake?▾

No, never bare-handed. Nervous and highly defensive, it holds its position and readily strikes rather than fleeing; any intervention (feeding, maintenance, care) must be done with a hook or long tongs, within a strict safety protocol.

What is its way of life in the wild?▾

Native to the humid forests, edges, bamboo groves and farmland near water of Southeast Asia (southern China, Vietnam, Laos, Thailand, Cambodia, Myanmar, northeastern India), it leads an arboreal and nocturnal life: it hunts from ambush at night and stays motionless, coiled on a branch, during the day.

How does it reproduce?▾

It is a viviparous species: after a gestation of 5 to 6 months, often triggered by a slight thermal and photoperiodic drop simulating the rainy season, the female gives birth to 10 to 20 young. The newborns, already 15 to 20 cm long, are fully venomous and defensive from birth and require the same precautions as adults.

What are the main health problems encountered?▾

Respiratory infections linked to insufficient ventilation or stagnant air, incomplete sheds when humidity is too low, stomatitis after stress or oral trauma, as well as internal and external parasitism, very common in the wild specimens that make up most of the trade, are the most frequent concerns. Acclimatisation stress can also lead to dehydration and refusal of food.

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