Lizards

Blue-tongue skink care guide

Tiliqua spp.

A heavy, ground-hugging omnivore that burrows. Floor space and deep substrate matter; height is largely wasted on them.

Fossorial — deep substrate for burrowing

Blue-tongue skink enclosure size

Fossorial — deep substrate for burrowing. An adult blue-tongue skink should live in at least 72" L × 24" W × 24" H; we build toward 96" L × 36" W × 24" H (8 × 3 × 2 ft, roughly 24 sq ft of floor and about a 359-gallon glass equivalent).

8x3ft is the realistic target for an adult.

Hatchling / baby
48" L × 24" W × 18" H recommended · min 36" L × 18" W × 16" H
Juvenile
72" L × 24" W × 24" H recommended · min 48" L × 24" W × 18" H
Adult
96" L × 36" W × 24" H recommended · min 72" L × 24" W × 24" H

Temperature and heating

Halogen flood over a flat basking area, on a dimming thermostat.

Basking / warm surface
95–105°F surface
Warm side (ambient)
85–90°F ambient
Cool side (ambient)
70–80°F ambient
Night
65–75°F

Lighting and UVB

UVB: T5 UVB 10–12% for Australian species, 6% for Indonesian (UVI 3–5). Run lights on a 12–14 hours photoperiod, on a timer, and replace UVB bulbs on the manufacturer's schedule even while they still emit visible light.

Humidity

Target Australian 40–60%; Indonesian 70–80%. Match the locality — Indonesian skinks need consistently damp substrate.

Substrate and depth

Topsoil / coco / sand mix. Depth: 5–6 in.

Enclosure tips and furnishing

  • Large hide they can wedge into
  • Flat basking stone
  • Deep diggable substrate
  • Shallow water bowl big enough to soak

Build list

  • 6–8ft enclosure — Adults are heavy-bodied roamers.
  • T5 UVB (strength by locality) + halogen — Diurnal baskers with a high UV requirement.
  • Digital thermostat — Every heat source must run through a thermostat — unregulated heat burns animals.
  • Two digital probe thermometers + hygrometer — Read the warm side, cool side and humidity directly — stick-on dials are inaccurate.
  • Bulk soil mix (6in depth) — They burrow, and shallow bedding causes stress.

Blue-tongue skink FAQ

How big should an adult Blue-tongue skink enclosure be?

At least 72" L × 24" W × 24" H, and we recommend building to 96" L × 36" W × 24" H — about 8 × 3 × 2 ft, or a 359-gallon glass equivalent. Fossorial — deep substrate for burrowing.

What temperatures does a Blue-tongue skink need?

Basking or warm surface 95–105°F surface, warm side 85–90°F ambient, cool side 70–80°F ambient, night 65–75°F. Halogen flood over a flat basking area, on a dimming thermostat.

Does a Blue-tongue skink need UVB?

T5 UVB 10–12% for Australian species, 6% for Indonesian (UVI 3–5). Photoperiod: 12–14 hours.

What humidity does a Blue-tongue skink need?

Australian 40–60%; Indonesian 70–80%. Match the locality — Indonesian skinks need consistently damp substrate.

What substrate is best for a Blue-tongue skink?

Topsoil / coco / sand mix, at a depth of 5–6 in.

How big does a Blue-tongue skink enclosure need to be for a hatchling?

Hatchling / baby: 48" L × 24" W × 18" H recommended, minimum 36" L × 18" W × 16" H. Scale up to the adult footprint as the animal grows.

Sources

Put this guide to work

Apply these targets to your own blue-tongue skink record, then log feedings, sheds and weights against them.