Chameleons are arboreal lizards that hail from warm, tropical climates. In the wild, they live in trees and bushes, so their cage should mimic this environment as closely as possible. A tall cage with lots of branches for climbing is ideal. Chameleons also like to hide away, so provide them with plenty of foliage and hiding spots.
Your chameleon's cage should be made out of sturdy material that won't collapse if your lizard climbs on it. Screen cages are a good option, as they provide adequate ventilation while still keeping your chameleon safely contained. The size of the cage will depend on the species of chameleon you have; generally speaking, larger cages are better.
As far as furnishings go, your chameleon's cage should contain:
- Lots of branches and leaves for climbing and hiding
- A water bowl (make sure it is shallow enough that your chameleon can't drown)
- A misting system to help maintain humidity levels