Chahoua Gecko Care Guide

Chahoua geckos (Mniarogekko chahoua), also known as mossy prehensile-tailed geckos, are a distinctive New Caledonian species recognized for their cryptic coloration, muscular prehensile tails, and remarkable climbing abilities. Native to Grande Terre and the Isle of Pines, these geckos exhibit considerable variation in coloration, pattern, and morphology across geographic populations.

Chahoua geckos are particularly fascinating for their deliberate movements, strong gripping abilities, and complex behavioral characteristics. Their substantial nutritional requirements, especially during growth and reproduction, make thoughtful husbandry essential to maintaining long-term health.

Natural Habitat & Behavior

In the wild, chahoua geckos inhabit humid forest environments, utilizing tree trunks, bark crevices, and dense vegetation for shelter. Their mottled green, brown, gray, and reddish coloration provides exceptional camouflage against moss- and lichen-covered surfaces. Primarily nocturnal and crepuscular, they emerge during periods of reduced light to forage for fruit, insects, and other available food sources.

Unlike many other arboreal geckos, chahoua possess particularly muscular, prehensile tails that assist with climbing and stability. They frequently navigate broad branches and textured surfaces using slow, deliberate movements. Geographic populations, commonly distinguished in captivity as Grande Terre and Pine Island localities, may exhibit differences in size, coloration, and physical characteristics.

Enclosure Requirements

Adult chahoua geckos require spacious, vertically oriented enclosures with substantial climbing structures and dense vegetation. A minimum enclosure size of 18” x 18” x 36” is recommended for a single adult, although larger enclosures such as 24” x 18” x 36” or 24” x 24” x 36” provide additional opportunities for exploration and natural behavior.

Large cork rounds, hollow logs, sturdy branches, and textured backgrounds should form the foundation of the enclosure. Chahoua geckos frequently utilize broad, stable climbing surfaces and enclosed retreats, making structural complexity particularly important. Dense foliage and multiple elevated hiding areas provide security while allowing animals to regulate their exposure to light and environmental conditions.

All climbing structures should be securely anchored, and sufficient horizontal and diagonal pathways should be provided throughout the enclosure. Naturalistic environments that offer multiple levels of cover and interconnected climbing routes are preferable to sparsely furnished enclosures.

Temperature & Heating

Chahoua geckos thrive in moderate temperatures, with daytime ambient temperatures maintained between 72–78°F (22–26°C) and nighttime temperatures dropping to approximately 65–72°F (18–22°C). A localized warm area approaching 80–82°F may be provided, although animals must always have access to cooler retreats.

Prolonged exposure to temperatures exceeding 85°F can cause significant stress and should be avoided. Supplemental heating is generally unnecessary in climate-controlled environments, although low-output overhead heating may be used when needed. All heat sources should be regulated by a thermostat to prevent overheating.

Lighting & UVB

Although primarily nocturnal, chahoua geckos benefit from low-level UVB exposure. Appropriate UVB lighting supports vitamin D₃ synthesis and calcium metabolism, which are particularly important for growing juveniles and reproductively active females.

Low-output fixtures such as the Arcadia ShadeDweller can provide suitable exposure when positioned at appropriate distances. Dense foliage and shaded retreats should always be available to allow animals to regulate their exposure. A consistent 12-hour day–night cycle supports normal biological rhythms and activity patterns.

Humidity & Hydration

Chahoua geckos require moderate to high humidity with natural fluctuations throughout the day. Daytime humidity levels of approximately 50–70% are appropriate, with evening misting temporarily increasing humidity to 70–80% or higher.

Enclosures should be allowed to dry partially between misting sessions to prevent stagnant conditions, excessive microbial growth, and respiratory complications. Adequate ventilation is essential, particularly in heavily planted bioactive enclosures.

Fresh drinking water should always be available in a secure dish. Chahoua geckos also readily drink droplets from foliage, cork bark, and enclosure surfaces following misting.

Substrate

At Hollywood Hills Exotics, my animals are maintained in naturalistic bioactive enclosures using a homemade ABG-style substrate mix. A well-draining combination of organic materials, topped with leaf litter, helps support beneficial microfauna and maintain environmental stability.

Bioactive setups are particularly well suited to chahoua geckos, allowing for natural humidity cycling and the establishment of complex planted environments. Cork bark, live plants, and organic substrate contribute to a functional ecosystem while providing additional opportunities for exploration and shelter.

Substrate should retain some moisture without becoming waterlogged, and proper drainage should be incorporated where necessary.

Diet & Nutrition

Chahoua geckos are omnivorous, consuming a combination of fruit, insects, and other available food sources in their natural habitat. A nutritionally complete commercial gecko diet should form the foundation of their captive nutrition, supplemented regularly with appropriately sized live insects such as dubia roaches, crickets, silkworms, and black soldier fly larvae.

At Hollywood Hills Exotics, Vital Meal is used as the primary prepared diet, with live insects offered regularly to provide dietary variety, encourage natural hunting behavior, and support protein intake. Juveniles benefit from frequent feeding during periods of rapid growth, while adult feeding schedules should be adjusted according to body condition, activity, and reproductive status.

Calcium management is particularly important for chahoua geckos, especially reproductively active females. Females produce heavily calcified eggs, placing substantial demands on their calcium reserves. Inadequate calcium intake can contribute to metabolic bone disease, reproductive complications, and egg-binding.

Feeder insects should be appropriately gut-loaded and dusted with calcium according to the animal’s dietary needs. Supplemental calcium may be provided to breeding females, with vitamin D₃ supplementation adjusted to account for UVB exposure and the nutritional composition of the prepared diet. Excessive supplementation should be avoided.

Chahoua geckos may also accept occasional appropriately sized whole-prey items, such as pinky mice, although these should be offered sparingly and are not necessary for a balanced diet. A varied feeding regimen emphasizing complete prepared diets and regular insect consumption is preferable to relying heavily on high-fat supplemental foods.

Lifespan & Common Health Needs

Chahoua geckos are long-lived reptiles, with captive individuals commonly reaching 15–20 years and potentially living longer under appropriate conditions. Their longevity requires a sustained commitment to proper environmental management, nutrition, and preventative care.

Common health concerns include obesity, dehydration, retained shed, metabolic bone disease, and reproductive complications associated with inadequate calcium availability. Egg-producing females warrant particular attention, as repeated reproductive cycles can place considerable demands on their nutritional reserves.

Regular monitoring of body condition, feeding behavior, weight, shedding, and activity is essential. Maintaining detailed records is particularly valuable for breeding animals, allowing changes in health and reproductive condition to be identified early.

Housing Multiple Geckos

Important Safety Information

Chahoua geckos can exhibit territorial behavior, and cohabitation carries a risk of aggression, stress, and injury. For this reason:

• Chahoua geckos should generally be housed individually.
• Males should never be housed together.
• Female pairs should not be assumed compatible.
• Established, compatible breeding pairs may be cohabitated in an adequately large enclosure with sufficient space, multiple retreats, and careful supervision.

Even established breeding pairs may exhibit aggression, particularly during reproductive activity or environmental changes. Compatibility should be evaluated continuously, and animals should be separated immediately if persistent chasing, biting, food competition, or other signs of stress occur.

Breeding females should be monitored closely for signs of reproductive stress, and access to appropriate nesting areas and calcium supplementation is essential. Individual housing remains the safest default and allows for more accurate monitoring of feeding, health, and behavior.