Skink Lizard Care: Guide to Blue-Tongued Skinks and More

TL;DR: 'Skink' covers hundreds of species with wildly different care needs, but the most popular pet skinks — blue-tongued skinks (Tiliqua spp.) and five-lined skinks — share core requirements: a 4×2-foot minimum enclosure, basking temps of 95–105°F (blue-tongues) or 90–95°F (five-lined), high-output UVB, and 40–60% humidity. Blue-tongued skinks are omnivores with unique diets (50–60% vegetables, 30–40% protein, 10% fruit) while five-lined skinks are insectivores. Blue-tongued skinks live 15–20+ years and are considered one of the best large lizard pets for intermediate keepers.

"Skink" refers to a large family (Scincidae) of lizards with over 1,500 species worldwide. In the pet hobby, the most popular skinks by far are the blue-tongued skinks (Tiliqua spp.), along with fire skinks (Lepidothyris fernandi), BTS skinks, and pink-tongued skinks. This guide focuses primarily on blue-tongued skinks as the keeper's go-to choice.

Blue-tongued skinks are excellent pets: large enough to handle comfortably, omnivorous and easy to feed, generally docile, and long-lived.

Quick Facts: Blue-Tongued Skink

Enclosure

Blue-tongued skinks are terrestrial and need floor space:

• Adults: Minimum 4' x 2' x 1.5' (120-gallon equivalent)
• Large wooden or PVC reptile enclosure preferred over glass (better insulation)

BTS are active foragers and will use all available floor space. Bigger is always better.

Temperature and Basking

• Basking spot: 105-110 degrees F surface temperature
• Warm ambient: 85-90 degrees F
• Cool side: 75-80 degrees F
• Night: 65-70 degrees F acceptable

Use a halogen or incandescent basking bulb over a flat basking area (slate tile, cork flat). Verify surface temps with an infrared temp gun.

UVB Lighting

BTS are diurnal and benefit significantly from UVB. A T5 HO 5.0 or 6% UVB lamp spanning 2/3 of the enclosure, 12-18 inches from the basking zone. Replace every 6 months.

Humidity

Target 40-60% humidity for most BTS species (Indonesian species like T. gigas prefer 60-80%). Use a digital hygrometer. A moisture-retentive substrate like coco fiber or topsoil helps maintain humidity.

Substrate

BTS love to burrow:

• Coco fiber + organic topsoil mix (3-4 inches deep)
• Reptile substrate blend
• Cypress mulch for higher-humidity species

Feeding

BTS are omnivores -- one of the most varied diets in pet lizards:

Animal protein (40-50% of diet):

• Commercial cat food (grain-free, no artificial colors)
• Dubia roaches, crickets, hornworms
• Cooked egg, cooked chicken (occasionally)

Vegetables and greens (50-60%):

• Collard greens, mustard greens, squash, green beans, berries
• Variety is key

Avoid: Avocado, onion, garlic, citrus, high-oxalate foods (spinach), fireflies (toxic)

Feeding schedule: Adults every 2-3 days; juveniles daily or every other day.

Supplementation: Calcium at most feedings; multivitamin every 2 weeks.

Handling

Blue-tongued skinks are generally very calm and become more relaxed with regular gentle handling. They may hiss and display their blue tongue when first approached, but most tame down quickly.

For techniques on building trust with lizards, see our reptile handling guide.

Common Health Issues

• Metabolic bone disease: From inadequate UVB or calcium
• Obesity: BTS are prone to becoming overweight -- monitor body condition
• Respiratory infections: From cold temps or excess humidity
• Mouth rot: Bacterial infection; vet treatment needed

Avoid common beginner errors detailed in our lizard owner mistakes guide.