Chahoua Gecko
Species Description

The Chahoua Gecko (Mniarogekko chahoua) derives its common name from the indigenous Kanak word "chahoua," the local term for this species in New Caledonia. This gecko is sometimes called the Mossy New Caledonian Gecko or Mossy Prehensile-Tailed Gecko, references to both its lichen-like coloration and its strongly prehensile tail. Among gecko enthusiasts, it's often simply called a "Chahoua" or abbreviated as "Chewi."

The genus name Mniarogekko was only recently established, with this species previously classified in the genus Rhacodactylus alongside crested geckos and gargoyle geckos. Genetic studies revealed sufficient differences to warrant reclassifying several New Caledonian species into separate genera. The species name chahoua honors its indigenous name. Before the 2012 reclassification, it was known scientifically as Rhacodactylus chahoua, and this older name may still appear in some literature and among hobbyists slow to adopt the taxonomic changes.

Two distinct forms exist within the species: the Mainland form and the Pine Island form. These geographical variants differ in size, coloration, and pattern, with Pine Island Chahouas typically displaying more vivid coloration and growing slightly larger. Some hobbyists consider these distinct enough to warrant separate common names, though taxonomically they remain a single species. The term "GT" (meaning Grande Terre, the mainland of New Caledonia) is sometimes used to specify the Mainland form in breeding discussions.

Chahoua Geckos are impressive lizards measuring 10-14 inches in total length, making them one of the larger New Caledonian gecko species. Pine Island locality animals tend toward the upper end of this size range, while Mainland forms are generally more moderate. Males typically grow larger than females, though the difference is less pronounced than in some other gecko species.

Their most striking feature is their coloration and pattern, which provides excellent camouflage against lichen-covered bark. Base colors range from olive green to brown, gray, or even pinkish tones, overlaid with darker mottling, reticulation, and spotting that creates a mossy, lichen-like appearance. This cryptic coloration varies significantly between individuals and can change somewhat with mood, temperature, and time of day. Pine Island forms often display more vibrant greens and whites compared to the earthier tones of Mainland animals.

The head is proportionally large and robust with prominent eyes featuring vertical pupils and no eyelids—they possess a transparent spectacle or scale covering the eye instead. Their mouth extends in a prominent grin-like curve, creating an endearing facial expression. The body is stocky and muscular, covered in soft, velvety skin with small granular scales creating a pebbly texture. Raised tubercles or bumps run along the body, particularly prominent along the spine and above the eyes.

The prehensile tail is thick and muscular, comprising approximately 40-50% of total length and serving as a fifth limb for climbing. Unlike many geckos, Chahouas rarely drop their tails, and when they do, the regenerated tail appears stubby and lacks the original's prehensile ability. The feet are equipped with lamellae—expanded toe pads covered in microscopic setae that enable secure climbing on smooth surfaces. Each toe bears a small retractable claw that aids in gripping bark and branches.

Sexual dimorphism is subtle. Males develop more pronounced hemipenal bulges at the tail base and possess a row of pre-anal pores in front of the vent. Females lack these features and may appear slightly smaller and more slender, though size alone is unreliable for sexing. Coloration doesn't reliably indicate sex, though some believe males tend toward more vivid hues.

Chahoua Geckos are known for their calm, docile temperaments, generally ranking among the more handleable large gecko species. While not as universally placid as crested geckos, most Chahouas become comfortable with human interaction when handled gently and infrequently. They're less likely to panic or jump suddenly compared to gargoyle geckos, though individual personalities vary significantly. Some remain shy throughout their lives while others become quite bold and interactive.

These geckos are primarily crepuscular to nocturnal, becoming active during twilight hours and throughout the night. During daylight, they typically remain motionless in sleeping spots—often plastered against vertical surfaces or wedged into crevices where their camouflage makes them nearly invisible. As evening approaches, they begin stirring, and by full darkness they're actively hunting, exploring, and feeding. In captivity, many adjust their schedules somewhat to human routines, particularly around feeding times.

Hunting behavior combines patient waiting with active stalking. Chahouas will sit motionless for extended periods, watching for prey movement with their large, keen eyes. When they spot an insect, they stalk slowly forward, using their prehensile tail for balance and support. The final strike is quick and decisive, with powerful jaws clamping down on prey. They're enthusiastic feeders that rarely miss their targets. In addition to hunting insects, they actively seek out fruit and nectar in the wild, licking at overripe fruit and flower nectar with their broad tongues.

The prehensile tail is central to Chahoua behavior and locomotion. They use it constantly while climbing, wrapping it around branches for security while reaching for food or navigating complex three-dimensional environments. When at rest, they often coil the tail around their perch. Unlike many geckos that readily drop their tails as a defense mechanism, Chahouas are quite reluctant to autotomize, making tail loss relatively rare in captivity with proper care.

Social dynamics are complex. Males are territorial and will fight viciously if housed together, making them strictly solitary or harem keepers (one male with one or more females). Females can sometimes coexist peacefully, though monitoring for aggression is essential. During breeding season, males become more active in seeking females, using scent marking and gentle tactile communication. Mating involves the male grasping the female's neck while copulating—a behavior that can appear rough but is normal for the species. Established pairs often coexist peacefully throughout the year.

Creating an appropriate habitat for Chahoua Geckos requires emphasis on vertical space and climbing opportunities. The minimum enclosure size for a single adult is 18x18x24 inches, though 24x18x36 inches or larger is preferred and allows for better environmental gradients and more naturalistic furnishing. These are arboreal animals that utilize vertical space extensively, making height more important than floor area.

Exo Terra and Zoo Med produce excellent screen and glass terrarium options suitable for Chahouas. Screen enclosures provide superior ventilation but make maintaining humidity more challenging. Glass or hybrid enclosures with front-opening doors offer easier humidity maintenance and feeding access while still providing adequate ventilation through top and bottom vents. The enclosure should be escape-proof—Chahouas are powerful climbers that can exploit any gaps or weak spots.

Substrate options vary based on keeper preference and desired aesthetics. Simple setups work well with paper towels or reptile carpet for easy cleaning and hygiene. Bioactive setups using a drainage layer, substrate barrier, and soil-based substrate topped with leaf litter and springtails create naturalistic, self-maintaining environments that benefit both keeper and gecko. Avoid substrates like calcium sand or any particulate material that poses impaction risks.

Temperature requirements are moderate and manageable. Maintain ambient temperatures of 72-78°F without any basking spot. Nighttime temperatures can drop to 65-72°F, mimicking natural conditions. In most climate-controlled homes, supplemental heating isn't necessary. If temperatures drop too low, use low-wattage ceramic heat emitters or heat panels controlled by thermostats. Never use heat rocks or undertank heaters with arboreal species, as they spend minimal time on the ground. Monitor temperatures with multiple digital thermometers positioned at different heights.

Humidity management is crucial, maintaining 60-80% relative humidity with daily misting. Mist heavily in the evening to simulate natural dewfall and provide drinking water. The enclosure should dry somewhat during the day to prevent bacterial growth while remaining humid. Incorporating live plants helps stabilize humidity while providing hiding spots and climbing surfaces. Pothos, snake plants, bromeliads, and ficus species work well. Use a quality hygrometer to monitor humidity levels accurately.

Lighting should provide a natural day/night cycle without excessive brightness. LED fixtures designed for planted terrariums work well, supporting live plants while providing adequate but not harsh light. UVB lighting is debated—Chahouas don't strictly require it as they obtain vitamin D3 through diet, but low-level UVB (2.0-5.0 bulbs) may provide enrichment and marginal health benefits. Maintain a consistent 12-hour light cycle.

Furnishing should emphasize climbing opportunities and security. Include multiple cork bark tubes and flats at various angles, bamboo poles, and sturdy branches creating a complex three-dimensional environment. Ensure all furnishings are secure—Chahouas are heavy geckos that will dislodge unstable decorations. Add several hiding spots including cork bark rolls and artificial caves. Live or artificial plants increase humidity and provide visual barriers that help geckos feel secure.

Chahoua Geckos are omnivores with dietary requirements that distinguish them from purely insectivorous species. In the wild, they feed on a variety of insects and other arthropods along with soft fruits, nectar, and pollen. Replicating this varied diet in captivity requires offering both insect prey and fruit-based nutrition, a characteristic shared with other New Caledonian gecko species.

The foundation of captive diet typically consists of commercially prepared powdered gecko diets specifically formulated for frugivorous species. Products like Repashy Crested Gecko Diet, Pangea Fruit Mix, Lugarti's Crested Gecko Diet, and similar formulations provide balanced nutrition including proteins, fats, vitamins, and minerals. Mix these powders with water to a consistency resembling baby food or yogurt, offering them in shallow dishes 3-4 times weekly.

Many keepers find that offering multiple flavors or brands in rotation prevents diet fatigue and ensures comprehensive nutrition. Chahouas often have flavor preferences—some prefer watermelon or banana flavors while others favor fig or apricot varieties. Experiment to determine your gecko's preferences. Prepared diets should remain available for 24 hours before being discarded and replaced. Never leave fruit mix in the enclosure for multiple days as it spoils and harbors bacteria.

Insect supplementation provides important enrichment and additional nutrition. Offer appropriately-sized crickets, dubia roaches, or black soldier fly larvae 1-2 times weekly. Size insects no larger than the space between the gecko's eyes. Dust insects with calcium powder before offering. Some Chahouas become so enthusiastic about insects that they'll hand-feed readily, while others prefer finding prey on their own. Remove uneaten insects after 15-20 minutes to prevent stress.

Gut-loading insects before feeding ensures maximum nutritional value. Feed crickets and roaches high-quality vegetables, fruits, and commercial gut-load products 24-48 hours before offering them to geckos. Starved insects provide minimal nutrition and may even harm geckos by biting them while attempting to feed themselves.

Supplementation of prepared gecko diets is typically unnecessary as they contain balanced nutrition. However, if feeding insects as a significant portion of the diet or feeding homemade fruit mixes, dust with calcium powder and provide a multivitamin once weekly. Over-supplementation can be as problematic as deficiency, so err on the side of caution with commercial diets.

Provide clean water in a shallow dish, though most hydration comes from nightly misting and licking droplets from surfaces. Chahouas will drink from standing water but often prefer lapping droplets. Change water daily to prevent bacterial growth. Watch for signs of dehydration including sunken eyes and wrinkled skin, though these are rare with proper misting protocols.

Juvenile Chahouas require more frequent feeding than adults—offer small amounts of fruit mix daily along with appropriately-sized insects 3-4 times weekly. Adults typically eat 3-4 times weekly, and some individuals naturally eat less during cooler months or breeding season. Monitor body condition through tail thickness and overall appearance, adjusting feeding frequency to maintain healthy weight.

Chahoua Geckos are generally robust animals when provided with appropriate care, though they can develop health problems from improper husbandry or genetic issues. Most health concerns in this species relate to nutritional deficiencies, environmental problems, or breeding-related issues in females. Captive-bred animals tend to be hardier and more adaptable than the limited wild-caught specimens that entered the hobby before export restrictions. A healthy Chahoua displays good body weight with a thick tail, clear eyes, smooth regular sheds, consistent feeding behavior, and active nocturnal habits.

Chahoua Geckos represent a significant time and financial investment, and their 15-20 year lifespan makes proper preventive care essential for long-term success. Establishing care with a reptile veterinarian before acquiring a Chahoua is wise, ensuring access to qualified medical care if problems develop. With appropriate husbandry, proper nutrition, and attentive observation, these impressive geckos can thrive in captivity for decades.

Chahoua Geckos generally tolerate handling better than many large gecko species, though they should still be regarded primarily as display animals with occasional gentle interaction rather than pets for frequent handling. New acquisitions should be given at least one week, preferably two, to settle into their enclosure before attempting handling. This acclimation period allows the gecko to establish feeding routines, learn its environment, and reduce stress levels before introducing human interaction.

When beginning handling, approach slowly and deliberately during evening hours when the gecko is naturally active and alert. Avoid grabbing from above, which triggers predator-escape responses. Instead, place your hand in the enclosure and allow the gecko to walk onto it voluntarily, or gently scoop from underneath, supporting the entire body. Chahouas are substantial geckos weighing 60-80 grams at maturity, so ensure you're supporting their weight fully.

Handle for 10-15 minutes maximum, once or twice weekly. More frequent handling stresses most individuals unnecessarily. During handling, remain calm and move slowly. Chahouas can jump when startled, though they're less prone to panic jumping than gargoyle geckos. Always handle over soft surfaces or while seated to prevent injury if the gecko jumps or falls. Their powerful toe pads grip firmly, and they may resist being placed back in their enclosure if they're enjoying exploration.

Recognize stress indicators including rapid breathing, attempted escape, vocalization (rare but possible), or defecation. If these occur, immediately return the gecko to its enclosure. Tail waving or lashing indicates agitation and suggests the gecko wants to be left alone. Unlike some species, Chahouas rarely become more handleable with increased frequency—respect their limits.

Avoid handling for 48 hours after feeding to prevent regurgitation, and never handle during shedding cycles when the skin is sensitive and the gecko feels vulnerable. Never grab or restrain the tail, which, while rarely dropped, could be injured by rough handling. Some individual Chahouas become remarkably tame and seem to enjoy limited interaction, while others remain skittish regardless of handling frequency—respect each gecko's personality.

The primary reward of Chahoua keeping comes from observing their natural behaviors, impressive size, and beautiful camouflage patterns rather than frequent handling. Setting up a naturalistic bioactive vivarium and watching their nighttime activities—hunting, climbing, and feeding—provides far more enrichment for both gecko and keeper than repeated handling sessions.

Chahoua Geckos suit intermediate keepers who have experience with basic reptile husbandry and understand the importance of environmental monitoring. While not as challenging as some specialist species, they require more attention to detail than entry-level pets like leopard geckos or crested geckos. Their omnivorous diet adds complexity, and their larger size demands more substantial enclosures and stronger furnishings than smaller gecko species.

The initial investment for Chahoua setup is moderate to high, typically $300-600 depending on enclosure size, quality of equipment, and whether creating a simple or bioactive setup. The gecko itself represents significant investment—Chahouas typically cost $300-800 depending on locality (Mainland vs. Pine Island), age, coloration, and breeder reputation. Monthly maintenance costs for prepared diets, insects, supplements, and utilities run $25-40. Budget for veterinary care including wellness exams and emergency reserves.

These geckos work well for adults or families with older children who understand appropriate interaction guidelines. Their impressive size makes them visually striking display animals, and their generally calm temperament allows occasional handling when desired. They're poor choices for young children seeking constantly interactive pets or for keepers wanting an animal they can handle daily. Chahouas suit gecko enthusiasts, collectors interested in New Caledonian species, or experienced keepers ready to step up to larger, more specialized animals.

Space requirements include a substantial vertical enclosure that can't be easily moved or relocated once established. Their 15-20 year lifespan represents a serious long-term commitment extending through potential life changes including moves, career changes, or family situations. Consider whether you can reliably maintain consistent husbandry for two decades and whether your living situation might change in ways that complicate proper care.

Legal status is straightforward—Chahoua Geckos are legal in virtually all jurisdictions without special permits. However, verify local regulations before acquiring any exotic pet. All available Chahouas are captive-bred, as New Caledonia prohibits export of native species. This captive-bred status ensures healthier, more adaptable animals while protecting wild populations. When purchasing, choose established breeders with health guarantees and proper documentation.

For dedicated keepers prepared to meet their specific requirements, Chahoua Geckos offer remarkable rewards: impressive size, beautiful camouflage patterns, fascinating behaviors, and the satisfaction of successfully maintaining a specialized New Caledonian species. They're stepping stones to more advanced gecko keeping while remaining accessible to keepers with fundamental reptile experience.