Rhacodactylus leachianus

New-Caledonian Giant gecko

This is the largest gecko species in the world and also one of the most vocal ones. They can produce lot's of sounds like: Barking, growling and even whistle.
The Rh. leachianus is found on Grande Terre and on the surrounding islands.


At the weight of 10-15 grams, you can look for Pre-anal pores with a loupe and see the difference between male and female. From the age of 4-5 years (and a snout to vent lenght of 20 cm) they can reach sexual maturety.

Keeping leachianus

If you have a pair of leachianus, it's still uncertain if they are compatible. They are very picky when it comes to choosing a partner. If they don't like each other there will be lots of fighting, and usally ends with one dead gecko. We keep them in a vivarium of 80x40x80 cm which is just fine.
They love to climb so we took some big branches and some cork bark. As substrate we use Jungle bark, this looks very natural and it retains moisture to aid in humidity levels
The humidity should be around 70%. You can reach this by misting the vivarium once or twice a day. We use artificial plants in all our vivariums cause they are easy to clean, but you can also use real plants. Just make sure they are not poisonous.


In the wild leachianus usally eats insects, small birds and fruit. We always give them Repashy MRP. This dieet is specially made for this species and contains everything a leachianus needs. We also give fresh fruit like kiwi, mango or banana. Every now and then we will give them a mice or a roach (Blaptica Dubia).