🐾 LandCare difficulty: IntermediateLegal complexity: Low
Red-eyed crocodile skink
Tribolonotus gracilis · also called Red-eyed armored skink, Orange-eyed crocodile skink, Crocodile skink
The red-eyed crocodile skink is a small, dragon-like rainforest skink with armored keeled scales and a striking orange eye-ring, kept in cool, humid, heavily planted vivaria. Unusually for a lizard it vocalizes and shows maternal egg-guarding, making it a fascinating display species.
Educational only. KinStation content is reviewed by licensed veterinarians but cannot replace an in-person exam. Always consult a licensed veterinarian or board-certified specialist for diagnosis, treatment, or any decision affecting your pet's health.
🩺 Need expert help with your red-eyed crocodile skink?
Connect with a specialist near you or ask a licensed vet — never substitute online guidance for hands-on care in an emergency.
Quick facts
| Size | Small: about 18-25 cm (7-10 in) total length including tail. |
| Lifespan | 6–12 years |
| Social needs | solo |
| Native region | New Guinea (Indonesia & Papua New Guinea) |
| Origin | Old World |
| Climate | 🌴 Tropical |
| Family | Scincidae |
| Genus | Tribolonotus |
Part of the Skinks & plated lizards
Smooth- to plate-scaled, often terrestrial and fossorial lizards — generally hardy, diurnal, and good-natured, needing diggable substrate, a basking gradient, and UVB.
Habitat & space requirements
From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
Habitat & enclosure
Native to the humid rainforest floor of New Guinea (Indonesia and Papua New Guinea). House one (or a single compatible male-female pair) in a planted terrarium of at least 60 x 45 x 45 cm (24 x 18 x 18 in). They are semi-fossorial floor dwellers that need cover, leaf litter, and a large water area.
Keep cool and very humid: ambient 24-28 C (75-82 F) with a modest basking spot around 29-31 C (84-88 F) and a night drop; avoid overheating. Humidity should stay high at 70-90% with daily misting. Low UVB (around 5%) is beneficial. Always provide a water dish large enough for the skink to fully submerge — they soak and swim.
Substrate
A deep, moisture-retentive bioactive substrate (coir/peat or ABG-style mix) topped with abundant leaf litter, cork bark, and hides. Leaf litter and dense cover are essential for security and humidity. A bioactive vivarium with springtails and isopods works very well and helps process waste while supporting humidity and microfauna for foraging.
Equipment & setup
Glass terrarium with good but not drying ventilation; large water dish/area; misting system or hand mister; cork bark, hides, and live plants; low-output 5% UVB; thermometer/hygrometer. A low-wattage basking source only if the room is cool. Drainage layer for the frequent misting and high moisture.
Diet
Insectivore. Feed a varied diet of appropriately sized crickets, dubia roaches, black soldier fly larvae, mealworms/superworms (sparingly), earthworms, and the occasional snail. Many appreciate hunting in leaf litter. Dust with calcium and a multivitamin; light D3 if UVB is minimal. Feed adults every 2-3 days. A consistently available water area aids hydration and is used for soaking.
Behavior & temperament
Shy, secretive, and skittish — they spend much time hidden and may 'play dead' (tonic immobility) or freeze when grabbed, and they can emit a high-pitched squeak when alarmed, a rare trait among lizards. Not a handling pet; handling stresses them and risks tail or stress-related issues. Notably, females show parental care, often curling around and guarding their single egg. Keep singly or as one male with one female; males are territorial toward each other and must never be co-housed.
Health
Because many are wild-caught, internal parasites and dehydration on arrival are common — quarantine and a fecal exam are strongly advised. Chronic low humidity causes shedding problems and dehydration. Stress from overhandling or co-housing incompatible animals leads to hiding, anorexia, and decline. Maintain stable cool temps and high humidity; avoid heat stress. Tail loss can occur if handled roughly.
Tips, DIY & hacks
Buy captive-bred when possible to avoid parasite-heavy imports, and always quarantine. Provide a big soaking water area — they genuinely use it. Treat as a display animal; the more hides and leaf litter, the more confident and visible they become. Keep them cool and humid; overheating is a common mistake. A bioactive setup simplifies the high-humidity husbandry.