Leachianus geckos (Rhacodactylus leachianus) are 10”-14” long, nocturnal, arboreal lizards native to the temperate rainforests of New Caledonia. They have chunky, wrinkled bodies and short, stubby tails. Scales are velvety and olive green base color and a mottled white, pale green, and/or pink pattern. Like other arboreal geckos, leachie geckos have sticky toe pads that enable them to climb up glass.
They are also known as “leachies” or “New Caledonian giant geckos”. Due to their larger size and less handleable temperament, leachie geckos are generally considered to be an intermediate-level pet.
An adult leachianus gecko should be kept in no smaller than a 24”L x 24”W x 48”H enclosure. Wider is recommended if possible. A front-opening enclosure is best for easy access.
Leachianus geckos spend most of their time at rest on thick branches, pieces of bark, or the sides of their enclosures. They appreciate large pieces of cork bark and thick, textured wood branches to perch on. Cork tubes are a great way to provide secure hiding places for your gecko. All enclosure furniture should be well-secured.
Because leachies are arboreal, substrate is not quite as important as other enclosure considerations. You can use a layer of paper towels changed daily, or you can use a particulate substrate that helps boost humidity, like reptile soil or coconut fiber.
Provide a water dish in a wall-mounted ledge, as well as misting twice daily with a spray bottle. Humidity should be maintained around 80% at night.
Heating and Lighting
Leachianus geckos generally do well between 65-80°F, although if your room temperature is between 65-75°F then it’s a good idea to provide a low-intensity basking spot at 82°F with a heat lamp. A cooler area in the enclosure should always be available, as these geckos heat stress easily. This means that if you can’t control your home’s temperatures during summer, this is not the best reptile for you.
UVB lighting is not required for leachie geckos’ survival, but it is still beneficial to their health. You will need a low-intensity Zoo Med or Arcadia UVB bulb, at least half the length of the enclosure, and mounted in a reflective fixture. UVB bulbs decay over time, so you will need to replace the bulb every 12 months to maintain performance.
Food and Supplementation
Leachianus geckos are omnivorous, and their natural diet consists of fruits, insects, and small animals. In captivity, their primary diet is a specially-formulated meal replacement powder marketed as “crested gecko diet,” or “CGD.” There are many brands and flavors of this diet, which is a great way to provide variety for your leachie. An adult leachianus gecko should be given a small bowl of CGD 3x/week and live insects 2x/week. Young leachies should receive CGD daily.
All feeder insects should be dusted with a calcium powder supplement like Repashy SuperCal LoD.
*This care sheet contains only very basic information. If you are new to leachianus geckos, please do additional research to obtain additional information from more detailed care sheets.