Blue Tongue Skink Enclosure Setup & Tank Size
Last updated: · Reviewed against sources listed below
An adult blue tongue skink needs at least 48 × 24 inches of floor space, and 72 × 24 inches or more is better. This guide covers enclosure size, deep digging substrate, hides, heating, UVB lighting and a gear checklist.
Enclosure size
- Minimum (L × W × H)
- Recommended
- Smallest standard size that fits
Tank gallons ↔ dimensions
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This is our enclosure size calculator, preset for blue tongue skinks.
Blue tongue skink enclosure size
Blue tongues are heavy-bodied lizards that walk, explore and dig rather than climb, so floor space matters far more than height.
- Babies: the adult enclosure works from the start if it has plenty of hides, or use a smaller enclosure for the first few months so a young skink feels secure and finds food easily.
- Adults: at least 48 × 24 inches of floor space and about 18 inches of height, which fits a standard 4 × 2 × 2 foot enclosure.
- Better for adults: 72 × 24 inches or larger. Keeper guides now aim for about 12 square feet of floor, roughly three times the skink’s length.
Our enclosure size calculator gives the minimum and recommended size from your skink’s actual length.
Substrate for digging
Blue tongues love to burrow, so give them 4–6 inches of deep, soft, loose substrate. For northern and other Australian types, a mix of about 60% organic topsoil and 40% play sand works well. Indonesian types need a substrate that holds moisture, such as a mix of topsoil, coconut fiber and a little sand, or coconut fiber with sphagnum moss.
Avoid pine and cedar shavings, whose oils can harm the airways, and fluffy paper beddings that cannot hold a burrow. Feed from a shallow dish so your skink does not swallow a lot of loose substrate with its food.
Hides and décor
Provide at least two hides, one at the warm end and one at the cool end, large enough for your skink to turn around in. Add flat stones or slate under the basking lamp, cork bark and low logs to climb over. Keep décor heavy and stable, because blue tongues dig under things and can topple loose pieces.
Heating layout
Heat one end of the enclosure strongly and leave the other end cool:
- Basking spot: 92–105°F33–41°C, measured on the surface under a halogen basking bulb.
- Cool side: 70–85°F21–29°C.
- Night: about 65–75°F18–24°C. Turn off the lights; add heat without light only if your room gets colder.
Run the basking bulb on a thermostat or dimmer and check the surface temperature with an infrared thermometer. A long enclosure makes it much easier to keep the cool side cool.
UVB lighting
Blue tongues bask in open sun in the wild, and UVB helps them make vitamin D3 and use calcium. Use a linear T5 high-output UVB tube covering about half the enclosure, overlapping the basking spot, and aim for a UV index of about 3–4 where your skink basks. Keep the skink at least 10 inches from the tube. Replace the tube as the maker recommends, usually every 12 months, and keep lights on for about 12 hours a day.
Cleaning routine
Remove droppings and leftover fresh food daily, and change the water every day; many blue tongues soak in their water bowl. Replace soiled patches of substrate as needed and deep-clean the enclosure every one to three months. Wash your hands after handling your skink or its enclosure, because reptiles can carry Salmonella.
Blue Tongue Skink enclosure checklist
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Halogen basking bulb and dome
Creates the hot surface basking spot blue tongues need.
Check price on AmazonTwo large hides
One at each end so your skink can rest at the temperature it needs.
Check price on AmazonFrequently asked questions
What size tank does a blue tongue skink need?
An adult needs at least 48 × 24 inches of floor space, which fits a standard 4 × 2 × 2 foot enclosure, and 72 × 24 inches or more is better. Babies can start in a smaller enclosure or in the adult one with plenty of hides. Floor space matters more than height.
Can blue tongue skinks live together?
No. Blue tongue skinks are territorial, males and females alike, and housing two together often leads to fights and serious injuries. Keep one skink per enclosure. They do not get lonely, and living alone lets each skink eat and bask without competition.
How deep should blue tongue skink substrate be?
About 4–6 inches of deep, soft, loose substrate lets a blue tongue burrow as it would in the wild. Use a topsoil and sand mix for northern and other Australian types, and a moisture-holding mix with coconut fiber for Indonesian types.
Sources
- Long Island Bird & Exotics Veterinary Clinic — Blue-Tongued Skink Care Guide
- LafeberVet — Basic Information Sheet: Northern Blue-Tongued Skink
- ReptiFiles — Blue Tongue Skink Enclosure Size
- ReptiFiles — Blue Tongue Skink Substrate
- ReptiFiles — Blue Tongue Skink Temperatures, UVB & Humidity
Where sources disagree we show the range they share. See our sources and methodology for how every number is checked.