Eastern Box Turtle — Care Sheet & Morphs

Husbandry requirements

Eastern Box Turtle — origin: Eastern North America (eastern United States; some subspecies reaching into northeastern Mexico). Lives in moist woodlands, forest edges and wooded meadows..

Terrarium temperature gradient

Night min15 °C

Cool side20–24 °C

Warm side26–29 °C

Basking spot29–32 °C

A hot spot under a lamp is necessary (a diurnal, heliophilic reptile). A night-time drop down to ~15 °C is beneficial (tolerates cooler). A seasonal cycle is useful; a controlled brumation (~5-10 °C) is possible for temperate, healthy and acclimatized specimens, under supervision.

Enclosure (adult)

120 × 60 × 45 cm

Terrestrial terrarium / large-floor-area tortoise table for one adult. A planted, shaded outdoor enclosure is strongly recommended in fine weather.

Minimum dimensions for a single adult; bigger is always better. Provide numerous hides, plants and burrowing areas. Escape- and digging-proof fencing (the turtle digs and climbs), and protection against predators outdoors. Avoid cohabitation: a solitary and easily stressed species.

Humidity

60–80 %

High humidity is essential. Keep the substrate moist, mist regularly and provide a leaf litter. Air that is too dry promotes eye, respiratory and skin-shedding problems.

Substrate

Fertilizer- and pesticide-free potting soil/peatCoco fibreSphagnum mossDead-leaf litter (oak, beech)Cypress bark mulch

Loose, moist substrate at least 8-15 cm deep to allow burrowing. Keep it moist without waterlogging; remove droppings and mouldy spots regularly.

UVB

Recommended

UVB lighting is essential (tube or lamp 5-7%, target UVI ~2-3 in the basking zone). To be replaced every 6 to 12 months depending on the model. Exposure to real sunlight outdoors (without a filtering pane of glass) is ideal.

Water source

Always available

A large, shallow water container allowing the turtle to enter and bathe without risk of drowning. It drinks, rehydrates and defecates there: clean and change the water daily. Regular lukewarm baths are useful for juveniles.

Origin

Emydidae

Eastern North America (eastern United States; some subspecies reaching into northeastern Mexico). Lives in moist woodlands, forest edges and wooded meadows.

Feeding & health

Diet

Omnivore — Insects, earthworms, slugs, snails, woodlice

About 50% animal protein and 50% plant matter (mushrooms, berries, edible flowers, varied foliage). Very attracted to bright red foods (strawberries, tomatoes): to be given in moderation. Juveniles more carnivorous. Supplement with calcium and provide a source of vitamin A (orange/green vegetables, occasional liver) to prevent hypovitaminosis A. Avoid excess sugary fruit.

Breeding

Oviparous

Clutch 3–8 eggs/young. Buried egg-laying, often 1 to 2 clutches per year after seasonal stimulation (overwintering). Incubation of about 70 to 90 days; temperature-dependent sex determination (TSD). Late maturity (often 5 to 10 years). Females can store sperm for several years.

Health watch points

Hypovitaminosis A (swollen/closed eyes, skin and respiratory damage)
Aural abscesses (typical swelling behind the eye), common in this species
Metabolic bone disease (soft/deformed shell) from UVB or calcium deficiency
Respiratory infections (unsuitable temperature or humidity)
Shell rot and parasitism, especially in wild-caught specimens

Morphs & genetics

Registry of 3 documented genes for Eastern Box Turtle.

High Yellow / Hypo lemon dropDom
Melanistic black phaseDom
Axanthic (Rare)Rec

Pairing calculator

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

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Eastern Box Turtle × Eastern Box Turtle

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 eastern box turtle.

What size does an adult Carolina box turtle reach?▾

Its carapace is generally 10 to 18 cm long, with the Gulf Coast subspecies (T. c. major) approaching 20 cm while the Florida form (T. c. bauri) stays smaller. This is therefore a modestly sized turtle, well suited to a terrarium or a reasonably sized tortoise table.

What lifespan should you anticipate before adopting one?▾

This is an extremely long-lived species, commonly 50 to 80 years and sometimes more than 100 years on record. Acquiring one is therefore a commitment for an entire human lifetime, and the question of who will care for it in the future should be considered from the outset.

How much space does it need to live in good conditions?▾

A single adult needs at least 120 x 60 cm of floor space and 45 cm of height, in a terrestrial terrarium or a tortoise table generously equipped with hiding spots and areas to burrow. A planted, shaded outdoor enclosure remains the best option in fine weather, provided it is fenced against escape (the turtle climbs and digs) and protected from predators; it is also best to avoid any cohabitation, as the species is solitary and easily stressed.

How should you set the heating and the basking spot?▾

This diurnal, heat-loving reptile needs a basking spot of 29 to 32 °C, a warm side around 26-29 °C and a cool side of 20-24 °C, with a beneficial nighttime drop to about 15 °C. Temperate, healthy individuals can also benefit from a controlled winter brumation around 5-10 °C, under supervision.

What substrate and humidity level suit it?▾

This humid-forest turtle needs a humidity level of 60 to 80 %, achieved with a loose substrate of potting soil, coconut fibre, sphagnum moss and leaf litter kept moist over 8 to 15 cm, deep enough for it to bury itself completely. Air that is too dry quickly promotes eye, respiratory and shedding problems, which is why regular misting is beneficial.

What does a Carolina box turtle eat day to day?▾

Its omnivorous diet consists of about half animal protein (insects, earthworms, slugs, snails) and half plant matter such as mushrooms, berries and varied greens. It is very fond of bright-red foods like strawberries or tomatoes, which should be given in moderation, and juveniles remain more carnivorous than adults.

Does it need UVB and supplements?▾

Yes, UVB lighting at 5-7 % (target UVI of 2-3 in the basking zone) is essential and should be replaced every 6 to 12 months, while exposure to real, unfiltered sunlight remains ideal. Calcium supplementation and a source of vitamin A in the diet prevent hypovitaminosis A, a disorder common in this species.

Does it need a water area for bathing?▾

Yes, a large container of shallow water lets it enter and bathe without any risk of drowning; it drinks and defecates in it, so the water must be cleaned and changed every day. Regular lukewarm baths are also helpful for juveniles.

Is it easy to tame or rather shy?▾

It is reputed to be shy but intelligent, able to recognise its keeper over time. It nonetheless remains sensitive to stress in a terrarium that is too open or exposed, hence the importance of a moist floor and a thick layer of litter where it can hide and burrow as it pleases.

Can this turtle be acquired freely?▾

No: the species is listed in CITES Appendix II and protected in many American states, as its wild populations are in decline. You must absolutely choose a captive-bred, traceable individual, since wild-caught specimens acclimatise poorly and are often parasitised or stressed.

How does it reproduce in captivity?▾

It is oviparous and lays 3 to 8 eggs, with 1 to 2 clutches per year after seasonal stimulation. Incubation lasts about 70 to 90 days and determines the juveniles' sex according to temperature; maturity is late (5 to 10 years) and females can store sperm for several years.

What health problems should you watch for?▾

Aural abscesses, recognisable by a swelling behind the eye, are particularly common in this species. Also seen are hypovitaminosis A, metabolic bone disease in cases of UVB or calcium deficiency, respiratory infections and, especially in wild specimens, shell rot and parasitism.

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