Beauty Rat Snake — Care Sheet & Morphs

Husbandry requirements

Beauty Rat Snake — origin: South and Southeast Asia: China, Taiwan, Vietnam, Thailand, Myanmar, Laos, northern India, Malaysia and Indonesia. A species complex with many subspecies inhabiting forests, karst areas and caves; O. t. friesi (Taiwan) is one of the largest colubrids..

Terrarium temperature gradient

Night min18 °C

Cool side22–25 °C

Warm side28–30 °C

Basking spot30–32 °C

A subtropical to tropical montane/forest species: avoid excessive temperatures. A clear thermal gradient with a moderate hot spot (30-32 °C) provided by a ceramic emitter or spotlight under thermostat control. A nighttime drop and a slight winter cooling (brumation) promote well-being and breeding.

Enclosure (adult)

150 × 60 × 90 cm

A spacious, semi-arboreal terrarium, taller than average for terrestrial colubrids. Provide sturdy branches, platforms and climbing points, several hides (warm side and cool side) and a securely locked lid (a powerful species and a notorious escape artist).

Minimum dimensions for a medium-sized adult; plan for larger (180 cm long or more) for a big friesi. Good ventilation is essential to avoid stagnant air.

Humidity

50–70 %

Moderate to high humidity. Mist or dampen one area without ever soaking the whole enclosure; increase it occasionally during sheds. Some cave-dwelling subspecies (ridleyi) appreciate higher humidity and a very moist hide.

Substrate

Coco fibre / fertiliser-free topsoilCypress or orchid barkAspen shavings (if humidity stays moderate)Humus + leaf-litter mix

Choose a substrate that holds a little moisture without moulding and allows burrowing. Aspen breaks down quickly in humid conditions; prefer coco or cypress if humidity is high. Remove droppings promptly to prevent scale rot.

UVB

Optional

Not essential for this colubrid, but low UVB (5-6% index, dimmed T5 type) is beneficial for an active, diurnal snake; always pair it with a shaded area. Provide a regular day/night cycle.

Water source

Always available

A large bowl of clean water available at all times for drinking and bathing, particularly appreciated before shedding. Renew regularly and clean to limit bacteria.

Origin

Colubridae

South and Southeast Asia: China, Taiwan, Vietnam, Thailand, Myanmar, Laos, northern India, Malaysia and Indonesia. A species complex with many subspecies inhabiting forests, karst areas and caves; O. t. friesi (Taiwan) is one of the largest colubrids.

Feeding & health

Diet

Carnivore (strictly) — Appropriately sized rodents (mice, rats); occasionally chicks/birds. Some wild populations eat bats.

Fast metabolism and voracious appetite. Feed thawed prey; juveniles every 5-7 days, adults every 10-14 days. Beware the very keen feeding response when opening the terrarium (bite risk): use feeding tongs. Avoid overfeeding, a common cause of obesity.

Breeding

Oviparous

Clutch 6–20 eggs/young. Breeding is usually triggered by a winter cooling/brumation period of several weeks. Incubation of about 55 to 70 days at 26-28 °C. Large clutches are possible in big specimens. Non-venomous and not CITES-listed; strongly favour captive-bred animals, as wild-caught specimens are frequently stressed and heavily parasitised.

Health watch points

Respiratory infections (temperature too low, stagnant air or excessive, poorly ventilated humidity)
Poor shedding / dysecdysis (insufficient humidity)
Scale rot / dermatitis (substrate too damp or soiled)
Mites (Ophionyssus natricis)
Internal parasites, especially in wild-caught specimens
Obesity and regurgitation linked to overfeeding

Morphs & genetics

Registry of 4 documented genes for Beauty Rat Snake.

Albino (T-) amelanisticRec
Albino (T+) / Hypo caramelRec
Calico (Chinese) piebald (incorrect)Inc.d
Patternless / StripedRec

Pairing calculator

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

🧬

Beauty Rat Snake × Beauty Rat Snake

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 beauty rat snake.

How big can an adult Beauty rat snake get?▾

It depends greatly on the subspecies: most adults measure between 150 and 200 cm, but the Taiwan Beauty (O. t. friesi) can reach 240 to 280 cm, making it one of the longest colubrids in existence.

Is this snake suitable for a beginner keeper?▾

It is rated intermediate: its active, curious and sometimes defensive temperament, especially when young or in wild-caught individuals, calls for a keeper already comfortable with a large, fast colubrid, even though the animal generally handles well once acclimated.

Why does it sometimes bite inside its terrarium?▾

The Beauty rat snake has a spectacular feeding response and can be defensive or jumpy when the enclosure is opened, especially as a juvenile. It is advisable to always feed with tongs to avoid any confusion between your hand and the prey.

What kind of terrarium should I provide for this species?▾

Being semi-arboreal, it needs a terrarium taller than the average for terrestrial colubrids, at least 150 x 60 x 90 cm for an average adult, with sturdy branches, climbing platforms and several hides on each side of the gradient. For large friesi specimens, it is better to plan for 180 cm in length or more, and a securely locked lid, as this species is known for escaping.

What temperatures should be maintained?▾

A clear gradient is necessary, with a moderate basking spot of 30 to 32 °C, a warm side at 28-30 °C, a cool side at 22-25 °C and a nighttime drop down to 18 °C. A slight winter cooling promotes both well-being and breeding.

What humidity level suits it?▾

Humidity should remain moderate to high, between 50 and 70%, with a moistened area without ever soaking the entire terrarium; it should be raised temporarily during sheds to facilitate the process.

What does a Beauty rat snake eat and how often?▾

It is a strict carnivore with a fast metabolism and a voracious appetite, feeding on appropriately sized thawed rodents and occasionally chicks. Juveniles feed every 5 to 7 days and adults every 10 to 14 days; be careful not to overfeed, as obesity is common in this greedy species.

Does it need a large water source?▾

Yes, a large bowl of clean water should be available at all times for drinking and bathing, which it particularly enjoys before shedding. It should be renewed regularly to limit bacterial growth.

What is its lifespan?▾

When well kept, it generally lives 15 to 20 years in captivity, sometimes longer with optimal care.

How does it breed and should captive-bred animals be preferred?▾

Breeding is generally triggered by a period of winter cooling, with clutches that can number from 6 to 20 eggs incubated for about 55 to 70 days at 26-28 °C. It is strongly advised to choose captive-bred individuals, as wild-caught animals are frequently stressed and heavily parasitized.

What health problems should be watched for?▾

Respiratory infections appear mainly with temperatures that are too low, stagnant air or excessive, poorly ventilated humidity, while an overly damp substrate promotes scale rot. Wild specimens are often carriers of internal parasites, and overfeeding can cause obesity and regurgitation.

Track your beauty rat snake on ReptiNode

Create a free tracking log: weight, meals, sheds, health record, QR codes and breeding projects — with the built-in genetics calculator for over 200 species.

Create a free account