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The Leachianus Gecko (Rhacodactylus leachianus), often called the New Caledonian Giant Gecko or simply “Leachie”, is the largest living gecko species in the world and one of the most impressive reptiles available in captivity.
Native to the lush forests of New Caledonia, this nocturnal species is prized for its massive size, velvety skin texture, and unique vocalisations that sound like chirps and growls.
Despite their formidable appearance, captive-bred Leachianus Geckos are calm, curious, and intelligent, making them one of the most rewarding geckos to keep for experienced reptile enthusiasts.
All our Leachianus Geckos are ethically captive-bred, healthy, and feeding well on premium gecko diets and live insects.
Key Features:
Captive-bred – healthy, well-started, and acclimated to terrarium life
World’s largest gecko species – adults reach 35–45 cm total length
Distinctive mottled colouration and thick, muscular body
Nocturnal and arboreal – loves climbing and exploring at night
Lifespan: 20+ years in captivity with proper care
Feeds on insects and fruit-based diets
Perfect for experienced reptile keepers or dedicated collectors
Care & Setup:
Enclosure: Vertical terrarium 60×45×90 cm or larger for one adult
Substrate: Coco fibre, bark, or bioactive mix with plants for humidity retention
Temperature: Daytime 25–28°C, nighttime 22–24°C
Humidity: 60–80%, maintained with daily misting
Lighting: Low to moderate UVB 6% for natural rhythm and calcium metabolism
Diet: Premium commercial gecko diet (fruit/insect-based) and occasional live insects like roaches or crickets
Temperament: Generally calm but can be territorial — best kept singly as adults
The Leachianus Gecko is a true reptile showpiece — rare, intelligent, and full of character. Its combination of size, personality, and prehistoric appearance makes it a favourite among serious reptile keepers worldwide.
