Lizards
Jackson's chameleon care guide
Trioceros jacksonii
A three-horned montane chameleon that needs cool temperatures and a nightly drop.
Arboreal — vertical height first
New to reptiles? Check your keeper level first →Jackson's chameleon enclosure size
Arboreal — vertical height first. An adult jackson's chameleon should live in at least 24" L × 24" W × 48" H; we build toward 24" L × 24" W × 48" H (2 × 2 × 4 ft, roughly 4 sq ft of floor and about a 120-gallon glass equivalent).
- Hatchling / baby
- 12" L × 12" W × 18" H recommended · min 12" L × 12" W × 18" H
- Juvenile
- 18" L × 18" W × 24" H recommended · min 18" L × 18" W × 24" H
- Adult
- 24" L × 24" W × 48" H recommended · min 24" L × 24" W × 48" H
Temperature and heating
Overhead heat (halogen, deep heat projector or radiant panel) on a thermostat, creating a warm-to-cool gradient.
- Basking / warm surface
- 80°F basking spot (no hotter)
- Warm side (ambient)
- 72–78°F
- Cool side (ambient)
- 65–72°F
- Night
- 55–65°F
Lighting and UVB
UVB: UVB required (T5 HO 6% or ShadeDweller). Run lights on a 12 hours on, 12 hours off photoperiod, on a timer, and replace UVB bulbs on the manufacturer's schedule even while they still emit visible light.
Humidity
Target 50–80%. Misting or a misting system plus a dripper; screen or hybrid enclosure for airflow. Chameleons rarely drink from bowls.
Substrate and depth
Bare floor or bioactive soil. Depth: 2–3 in.
Diet and feeding
Gut-loaded insects (crickets, dubia, black soldier fly larvae) dusted with calcium; vitamins weekly.
Enclosure tips and furnishing
- Dense live plants (pothos, umbrella tree)
- Many horizontal branches at different heights
- Dripper for drinking
Build list
- Enclosure at adult size — Buy for the adult footprint to avoid repeated upgrades.
- Digital thermostat — Every heat source must run through a thermostat — unregulated heat burns animals.
- Two digital probe thermometers + hygrometer — Read the warm side, cool side and humidity directly.
Jackson's chameleon FAQ
How big should an adult Jackson's chameleon enclosure be?
At least 24" L × 24" W × 48" H, and we recommend building to 24" L × 24" W × 48" H — about 2 × 2 × 4 ft, or a 120-gallon glass equivalent. Arboreal — vertical height first.
What temperatures does a Jackson's chameleon need?
Basking or warm surface 80°F basking spot (no hotter), warm side 72–78°F, cool side 65–72°F, night 55–65°F. Overhead heat (halogen, deep heat projector or radiant panel) on a thermostat, creating a warm-to-cool gradient.
Does a Jackson's chameleon need UVB?
UVB required (T5 HO 6% or ShadeDweller). Photoperiod: 12 hours on, 12 hours off.
What humidity does a Jackson's chameleon need?
50–80%. Misting or a misting system plus a dripper; screen or hybrid enclosure for airflow. Chameleons rarely drink from bowls.
What substrate is best for a Jackson's chameleon?
Bare floor or bioactive soil, at a depth of 2–3 in.
How big does a Jackson's chameleon enclosure need to be for a hatchling?
Hatchling / baby: 12" L × 12" W × 18" H recommended, minimum 12" L × 12" W × 18" H. Scale up to the adult footprint as the animal grows.
Sources
Put this guide to work
Apply these targets to your own jackson's chameleon record, then log feedings, sheds and weights against them.