Asian forest tortoise — Care Sheet & Morphs

Husbandry requirements

Asian forest tortoise — origin: South and Southeast Asia: north-eastern India (Assam), Bangladesh, Myanmar, Thailand, the Malay Peninsula, Sumatra and Borneo. Humid, shaded lowland and mountain forests (mesic environment, never arid)..

Terrarium temperature gradient

Night min18 °C

Cool side22–25 °C

Warm side27–30 °C

A cool, moisture-loving species: avoid overheating. Do not exceed ~30-32 °C (hyperthermia can be fatal). No truly scorching hot spot is needed, a slightly warmer area is enough. A night-time drop (18-20 °C) is beneficial.

Enclosure (adult)

400 × 200 × 100 cm

Large planted outdoor enclosure (in a warm, humid temperate climate) or spacious humid indoor enclosure/terrarium

Minimum dimensions for a single adult; provide larger and enriched (hides, dense shaded areas, live plants). CITES Appendix II / IUCN Critically Endangered species: favour captive-bred animals and avoid wild-caught specimens, which are very fragile. Sensitive to drought and excessive heat.

Humidity

70–90 %

High and constant humidity. Provide regular misting, moist substrate and a thick leaf litter. Humidity that is too low promotes dehydration and respiratory ailments.

Substrate

Topsoil / garden soil without fertiliserCoco fibreCypress bark or mulchSphagnum mossDead-leaf litter

Deep (20-30 cm) and permanently moist substrate, covered with a thick leaf litter: essential to the natural mound-nesting behaviour and to maintaining humidity. Avoid any dry or dusty substrate (arid sand, hay).

UVB

Recommended

UVB required but moderate: an understorey species that seeks shade. A 5-6% UVB tube (T5) above part of the space, or exposure to real sunlight in a planted outdoor enclosure, always ensuring abundant shaded areas.

Water source

Always available

A large shallow water container allowing the animal to drink and bathe (it must be able to partially immerse itself); the species enjoys long soaks. Clean water renewed daily. Regular misting to support humidity.

Origin

Testudinidae

South and Southeast Asia: north-eastern India (Assam), Bangladesh, Myanmar, Thailand, the Malay Peninsula, Sumatra and Borneo. Humid, shaded lowland and mountain forests (mesic environment, never arid).

Feeding & health

Diet

Omnivore with a strong herbivorous dominance — Mushrooms, invertebrates (slugs, worms), occasionally amphibians or carrion

Based on leafy, fibrous plants (grasses, leaves, flowers, seasonal plants), mushrooms, young shoots (bamboo) and ferns. Fruit in small amounts. Lower fibre needs and higher moisture needs than tortoises from arid environments. Animal protein only rarely and occasionally. Suitable calcium/vitamin supplements.

Breeding

Oviparous

Clutch 20–50 eggs/young. Behaviour unique among tortoises: the female uses her legs to pile up a large mound of litter and plant matter, lays her eggs in it, then actively guards the nest for several days. Large clutches (20-50 eggs). Incubation of about 60-100 days depending on temperature (approx. 26-29 °C).

Health watch points

Respiratory infections (promoted by unsuitable temperatures or humidity)
Massive parasite load in wild-caught specimens (nematodes, protozoa, ticks)
Import stress: anorexia, dehydration, immunosuppression
Dysecdysis, abscesses and skin or shell infections
Heatstroke / hyperthermia when exposed to excessively high temperatures (>32 °C)

Morphs & genetics

Registry of 3 documented genes for Asian forest tortoise.

Melanistic (Phayrei) black phaseDom
Hypomelanistic / GoldenDom
Albino (T-)Rec

Pairing calculator

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

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Asian forest tortoise × Asian forest tortoise

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 asian forest tortoise.

Is the Asian forest tortoise suitable for a beginner?▾

No, it is considered an advanced-level species: it is a CITES Appendix II tortoise and listed as Critically Endangered by the IUCN, and many individuals in the trade are wild-caught, fragile, parasitised and sensitive to stress. It needs a vast amount of space, constantly high humidity and genuine experience keeping chelonians.

How big does this tortoise get?▾

It depends on the subspecies: the southern form (M. e. emys) reaches about 40 to 50 cm and 15 to 20 kg, while the northern form (M. e. phayrei) grows to 50 to 60 cm and 25 to 35 kg, making it the largest tortoise on mainland Asia.

What kind of enclosure does it need?▾

Allow at least 400 x 200 x 100 cm for a single adult, ideally a large planted outdoor enclosure in a warm, humid climate, or otherwise a very spacious humid indoor terrarium. Bigger, with plenty of hiding spots and dense shaded areas, is always better, and captive-bred animals should always be favoured over wild-caught individuals, which are extremely fragile.

Does it need an intense basking spot like other tortoises?▾

No, unlike many tortoises, this cool-climate, humidity-loving species does not need an intense basking spot: aim for 27 to 30 °C on the warm side and 22 to 25 °C on the cool side, with a beneficial night-time drop down to 18 °C. Never exceed about 30-32 °C, as excessive heat can cause fatal heatstroke.

How much humidity does it need?▾

Consistently high humidity, between 70 and 90%, is essential: mist regularly, keep the substrate permanently damp and provide a thick layer of leaf litter. An environment that is too dry quickly leads to dehydration and respiratory infections.

What substrate should be used?▾

Provide a deep substrate, 20 to 30 cm, made of topsoil, coco fibre, cypress bark or mulch and sphagnum moss, topped with a thick layer of dead leaves. This depth is essential both for maintaining humidity and for the species' natural mound-nesting behaviour; avoid any dry or dusty substrate such as sand or hay.

What does an Asian forest tortoise eat?▾

It is an omnivore that is strongly herbivorous, with lower fibre requirements and higher moisture needs than tortoises from arid habitats. Its diet is based on grasses, leaves, flowers, young bamboo shoots and ferns, supplemented with mushrooms and, occasionally, invertebrates such as slugs or worms; animal protein remains an occasional treat.

Does it need UVB?▾

Yes, but only a moderate amount: it is an understory species that naturally seeks out shade rather than full sun. A 5-6% UVB tube covering only part of the enclosure, or exposure to real sunlight in a planted outdoor enclosure with large shaded areas, is more than enough.

Does it need a large water feature?▾

Yes, a large shallow water dish is necessary so it can drink and partially soak: this tortoise particularly enjoys long soaks. Refresh the water daily and supplement with regular misting to help maintain ambient humidity.

How does this tortoise reproduce, and why is it so unusual?▾

Its nesting behaviour is unique among tortoises: the female uses her hind legs to heap up a large mound of litter and vegetation, lays a typically large clutch of 20 to 50 eggs inside it, then actively guards the nest against intruders for several days. Incubation takes about 60 to 100 days depending on temperature, around 26 to 29 °C.

How long does it live?▾

It is commonly credited with a lifespan of 60 to 80 years or more, although reliable data on its actual maximum longevity in captivity remain limited. It is therefore a generational commitment that should be carefully weighed before acquiring one.

What are the most common health problems?▾

Wild-caught individuals often arrive with a heavy parasite load (nematodes, protozoa, ticks) and marked import stress showing as anorexia and dehydration. In all individuals, poorly regulated temperature or humidity promotes respiratory infections, dysecdysis, and abscesses of the skin or shell.

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