Species · Reptile

Blue-tongue Skink

Tiliqua scincoides

The backyard dragon of eastern Australia — a big, placid, ground-dwelling skink that flashes a blue tongue at whatever startles it.

Australians grow up knowing blueys from the garden, which disguises what a remarkable pet the species makes: sturdy, slow-moving, food-motivated, tolerant of handling to the point of seeming to enjoy it, and content on a diet a household can mostly assemble from the fridge. The surprises are the calendar and the floor plan — twenty years is normal and thirty is possible, and a big terrestrial skink wants floor space the way an arboreal gecko wants height. As first reptiles go, in the places it can legally be kept, this is about as forgiving as the group gets.

At a glance

Lifespan: 15–25 years
Adult size: 45–60 cm
Minimum housing: 120 cm floor-first enclosure
Heat & light: Basking mid 30s °C, gradient to low 20s, UVB
Diet: Omnivore — vegetables, protein, the odd snail
Handling: Excellent — solid, slow and unbothered
Company: Alone; blueys fight their own kind
With children: Very good with calm, washed hands
Daily attention: 30 min — food, checks, lights

Morphs · 3 listed

Eastern and northern forms are the common pets; the morph trade is growing. The animal under every colourway is the same amiable tank.

Eastern
Northern
Classic banded

Right for you if

You want a reptile that genuinely tolerates — maybe likes — gentle handling.
Floor space for a long enclosure exists.
Two decades of an easy-going lodger sounds right.
Mixed fresh food a few times a week beats live insects for your household.

Wrong for you if

You wanted a climbing, displaying showpiece; blueys are carpet-level.
The licence for your state is not in hand.
A dog with a prey drive patrols the same rooms.
Twenty years is longer than any plan you currently have.

Welfare and sourcing — read this part

Metabolic bone disease — the most common bone disease of pet reptiles — sits over every growing, plant-and-insect-eating lizard, and its causes are the keeper’s checklist: calcium-to-phosphorus balance, vitamin D3, UVB and temperature.¹² For a bluey that means UVB done properly and a balanced omnivore bowl, not cat food and hope.
Buy captive-bred with paperwork — never a skink from the garden. Wild collection is both illegal in the places blueys come from and the wrong start for a pet; a licensed breeder’s animal is calm because it has never known anything else.
Reptile keeping is licensed and restricted differently from place to place, including state by state within Australia — and for some species here that difference is the whole question. Check what applies where you live before you commit.

Sources

Disorders and Diseases of Reptiles. MSD Veterinary Manual 2026. Accessed 2026-09-05. International MSD Veterinary Manual Secondary nutritional hyperparathyroidism — metabolic bone disease — is the most common bone disease seen in pet reptiles, driven by poor calcium-to-phosphorus ratios, insufficient vitamin D3, lack of UVB light and inadequate temperature, and it predominantly affects rapidly growing plant- and insect-eating lizards, turtles and tortoises. Respiratory infections including pneumonia are common in reptiles and are tied to unfavourable temperatures, poor sanitation and malnutrition. Treatment does not succeed unless nutrition, environment and sanitation are corrected too.
Providing a Home for a Reptile. MSD Veterinary Manual 2026. Accessed 2026-09-05. International MSD Veterinary Manual Reptiles are ectotherms that regulate body temperature by moving around their environment, so an enclosure must offer a range of temperatures within the species’ preferred band — and exceeding the upper limit by only around 5°C can be deadly for some species. UVB light in the 290–320 nm range is essential in many species for making vitamin D3 in the skin, which enables dietary calcium absorption.

Every source here was checked, not recalled. Where this page makes a health statement and no source appears against it, that is not an oversight we have hidden — it means the claim is not yet sourced, and the build reports how many are in that state.

Availability, registration and keeping requirements differ from place to place. Check the rules where you live before you commit to any animal — we describe animals, not law.