Gulf Coast box turtle (Terrapene major)
Photo: (c) evangrimes, some rights reserved (CC BY) / CC BY 4.0 · via Wikimedia Commons

Reptile · Box turtle

Gulf Coast box turtle care guide

Terrapene major

IntermediateCITES – buy captive-bred

The gulf coast box turtle is a intermediate-level box turtle from US Gulf Coast, Florida panhandle to Louisiana. Adults reach 15–21 cm shell and live 40–60 years in captivity. The largest box turtle; very fond of water, so offer a large soaking area.

  • Enclosure 150 × 75 × 60 cm
  • Temp Basking 30°C, cool 22°C
  • Humidity 70–90%

How much does a gulf coast box turtle cost in Canada?

Animal$350–700Typical captive-bred price
Bioactive enclosure$1430–2430Enclosure $690–1310 · equipment $210–450 · bioactive supplies ≈ $570
Yearly upkeep$300–550Food, supplements, bulbs, power, vet fund
First year total$2080–3680All prices CAD, estimates

Gulf Coast box turtle quick facts

Skill level
Intermediate
Adult size
15–21 cm shell
Lifespan
40–60 years
Activity
Diurnal
Native range
US Gulf Coast, Florida panhandle to Louisiana
Minimum enclosure
150 × 75 × 60 cm (59 × 30 × 24 in, ≈ 178 US gal)
Housing
Best kept alone.
Temperature
Basking 30°C, cool 22°C
Humidity
70–90%
UVB
Required
Diet
Omnivore – earthworms, insects, snails, berries, greens, mushrooms
Bioactive style
Humid terrestrial

Gulf Coast box turtle enclosure & bioactive setup

Give one adult at least 150 × 75 × 60 cm (59 × 30 × 24 inches). Best kept alone. This species suits a humid terrestrial bioactive build.

  1. Leaf litter2 cm
  2. Jurassic ABG Terrarium Mix15 cm
  3. Drainage – clay bio balls3 cm

Deep, moist soil is what holds humidity in this build – much better than thin bedding, especially through Canadian winters.

Temperature: Basking 30°C, cool 22°C. Humidity: 70–90%. UVB: Required.

What does a gulf coast box turtle eat?

Omnivore – earthworms, insects, snails, berries, greens, mushrooms. Feed adults every 1–2 days, roughly half protein and half plants.

Handling, temperament & health

Calm; tolerates gentle handling.

Health watch: Vitamin A deficiency, ear abscesses and shell rot in dirty, wet setups.

Cleaning & maintenance schedule

Daily

  • Check warm and cool side temperatures and humidity.
  • Refresh the water bowl.

Weekly

  • Mist or pour water into the substrate to keep the lower layers moist.
  • Spot-clean large waste promptly.

Monthly

  • Top up leaf litter.
  • Stir and fluff compacted topsoil around hides.
  • Check heat sources and thermostat calibration.

Yearly

  • Partially refresh soil in high-traffic areas.
  • Replace UVB bulbs (if used).

Recommended for a gulf coast box turtle bioactive

Quantities are for one minimum-size enclosure (150 × 75 × 60 cm).

Gulf Coast box turtle FAQ

Is the gulf Coast box turtle good for beginners?

The gulf Coast box turtle is best for keepers with some experience (intermediate). Calm; tolerates gentle handling.

What size enclosure does a gulf Coast box turtle need?

At least 150 × 75 × 60 cm (about 59 × 30 × 24 inches, roughly 178 US gallons) for one adult. Best kept alone.

How much does a gulf Coast box turtle cost in Canada?

Typically $350–700 CAD to buy, about $1430–2430 CAD for a complete bioactive enclosure, and $300–550 CAD a year to keep.

What temperature and humidity does a gulf Coast box turtle need?

Temperature: Basking 30°C, cool 22°C. Humidity: 70–90%.

What does a gulf Coast box turtle eat?

Omnivore – earthworms, insects, snails, berries, greens, mushrooms. Feed adults every 1–2 days, roughly half protein and half plants.

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This care sheet is general guidance from One Bioactive, not veterinary advice. Needs vary with age, locality and individual animals – confirm with your breeder and an exotics vet. Prices are typical Canadian ranges in CAD and change over time.