Alligator snapping turtle (Macrochelys temminckii)
Photo: Gary M. Stolz/U.S. Fish and Wildlife Service / Public domain · via Wikimedia Commons

Reptile · Semi-aquatic turtle

Alligator snapping turtle care guide

Macrochelys temminckii

ExpertCITES – buy captive-bredVery large adultMay need a permit

The alligator snapping turtle is a expert-level semi-aquatic turtle from Southeastern USA. Adults reach 40–80 cm shell, up to 80 kg+ and live 50–100 years in captivity. A giant that needs a custom pond; check local laws before buying.

  • Enclosure 360 × 120 × 60 cm
  • Temp Water 22–27°C
  • Humidity Not critical (aquatic)

How much does a alligator snapping turtle cost in Canada?

Animal$100–300Typical captive-bred price
Bioactive enclosure$3290–5800Enclosure $2410–4570 · equipment $140–310 · bioactive supplies ≈ $780
Yearly upkeep$500–1200Food, supplements, bulbs, power, vet fund
First year total$3890–7300All prices CAD, estimates

Alligator snapping turtle quick facts

Skill level
Expert
Adult size
40–80 cm shell, up to 80 kg+
Lifespan
50–100 years
Activity
Nocturnal
Native range
Southeastern USA
Minimum enclosure
360 × 120 × 60 cm (142 × 47 × 24 in, ≈ 685 US gal)
Housing
Best kept alone.
Temperature
Water 22–27°C
Humidity
Not critical (aquatic)
UVB
Not needed
Diet
Carnivore – fish, rodents, pellets, earthworms
Bioactive style
Semi-aquatic (paludarium)

Alligator snapping turtle enclosure & bioactive setup

Give one adult at least 360 × 120 × 60 cm (142 × 47 × 24 inches). Best kept alone. This species suits a semi-aquatic (paludarium) bioactive build.

  1. Leaf litter2 cm
  2. Jurassic ABG Terrarium Mix8 cm
  3. Drainage – clay bio balls4 cm

Quantities assume about half the floor is land. The water half needs a filter and regular partial water changes.

Temperature: Water 22–27°C. Humidity: Not critical (aquatic). UVB: Not needed.

Some Canadian provinces and many municipalities restrict or ban this species. Check your local bylaws and any provincial permit rules before buying.

What does a alligator snapping turtle eat?

Carnivore – fish, rodents, pellets, earthworms. Feed adults 1–2 times a week; juveniles 2–3 times a week.

Handling, temperament & health

Dangerous bite; hands-off species requiring specialist handling.

Health watch: Obesity, shell rot and injuries in undersized tanks.

Cleaning & maintenance schedule

Daily

  • Check water and air temperature; feed according to species.

Weekly

  • Change 20–30% of the water with dechlorinated water.
  • Rinse filter sponge in old tank water (never tap water) as needed.

Monthly

  • Top up leaf litter on land; prune plants at the waterline.

Yearly

  • Service the pump/filter fully.

Recommended for a alligator snapping turtle bioactive

Quantities are for one minimum-size enclosure (360 × 120 × 60 cm).

Alligator snapping turtle FAQ

Is the alligator snapping turtle good for beginners?

No – the alligator snapping turtle is a specialist animal for expert keepers only. Dangerous bite; hands-off species requiring specialist handling.

What size enclosure does a alligator snapping turtle need?

At least 360 × 120 × 60 cm (about 142 × 47 × 24 inches, roughly 685 US gallons) for one adult. Best kept alone.

How much does a alligator snapping turtle cost in Canada?

Typically $100–300 CAD to buy, about $3290–5800 CAD for a complete bioactive enclosure, and $500–1200 CAD a year to keep.

What temperature and humidity does a alligator snapping turtle need?

Temperature: Water 22–27°C. Humidity: Not critical (aquatic).

What does a alligator snapping turtle eat?

Carnivore – fish, rodents, pellets, earthworms. Feed adults 1–2 times a week; juveniles 2–3 times a week.

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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.