Jackson's chameleon — Care Sheet & Morphs

Husbandry requirements

Jackson's chameleon — origin: East Africa: humid montane forests (cloud forests) of Kenya and northern Tanzania, generally between 1,500 and 2,500 m. Introduced feral populations exist in Hawaii, from where a large proportion of the animals in the trade originate..

Terrarium temperature gradient

Night min12 °C

Cool side18–22 °C

Warm side24–27 °C

A montane forest species, very sensitive to heat: NEVER exceed ~28°C; a prolonged temperature above 29-30°C is dangerous (potentially fatal heatstroke). No true heliophilic hot spot: at most provide a slightly warmer area (~26-28°C max) under a low-wattage bulb, never more. A marked night-time drop (12-18°C) is beneficial and recommended.

Enclosure (adult)

60 × 60 × 90 cm

Highly ventilated arboreal terrarium of the screen-cage type or a terrarium with generous ventilation, densely planted (live non-toxic plants: Ficus, pothos, Schefflera) with numerous fine horizontal branches for moving about and resting up high.

Minimum for a single adult; larger is always preferable (ideally 60 x 60 x 120 cm). Ventilation is crucial: enclosed, confined environments promote respiratory infections. Avoid non-ventilated all-glass setups and overheating. Keep individually.

Humidity

50–80 %

A humid cloud-forest atmosphere. Manual or automatic misting twice a day, with higher humidity peaks at night and partial drying during the day. Good ventilation between mistings is essential to avoid stagnation and respiratory and fungal infections.

Substrate

Bare bottom / paper towelDraining bioactive substrate (fertiliser-free soil + drainage layer)

A bare bottom or paper towel makes hygiene easier and prevents any risk of ingestion. A draining bioactive setup is possible to manage the high humidity, but requires good drainage to avoid standing water. Avoid fine, dusty substrates.

UVB

Recommended

Essential. Linear T5 UVB tube 5-6% (Ferguson zone 2-3), placed above the mesh, replaced every 6-12 months. Moderate UVB exposure allows vitamin D3 synthesis and prevents osteofibrosis; avoid excessive intensity and provide shaded areas.

Water source

Always available

Does not drink from a bowl of stagnant water. Hydrates from the drops present on the foliage: provide a drip system and/or misting twice a day. Chronic dehydration is common and is recognised by sunken eyes and orange urates.

Origin

Chamaeleonidae

East Africa: humid montane forests (cloud forests) of Kenya and northern Tanzania, generally between 1,500 and 2,500 m. Introduced feral populations exist in Hawaii, from where a large proportion of the animals in the trade originate.

Feeding & health

Diet

Insectivore — Crickets, flies (fruit flies, houseflies), roaches (Blaptica dubia), locusts, silkworms, hornworms; occasional snails as a supplement.

Varied live insects, smaller than the inter-orbital space. Gut-loading (feeding the prey) 24-48 h before offering. Dusting with calcium without D3 at most meals, calcium with D3 and vitamins sparingly (1-2x/month). Do not overfeed adults or females, to limit gestation problems.

Breeding

Viviparous

No egg-laying: the female gives birth to live young after a gestation of about 5-6 months. Reproduction is demanding for the female (risk of dystocia, exhaustion and mortality); rest and good condition are necessary between two litters. The young are independent and must be raised separately to avoid competition and cannibalism.

Health watch points

Heatstroke / hyperthermia (overheating of the terrarium, a major cause of mortality)
Osteofibrosis (MBD) from calcium or vitamin D3 deficiency or insufficient UVB
Respiratory infections (insufficient ventilation, stagnant humidity, an overly warm environment)
Chronic dehydration and gout / kidney damage (inadequate hydration or temperature)
Gestation complications in the female (dystocia, exhaustion) and chronic stress (oedema, dark colouration)

Morphs & genetics

Registry of 0 documented gene for Jackson's chameleon.

Frequently asked questions

Answers to the most common questions about keeping the jackson's chameleon.

Where does Jackson's chameleon come from, and should you choose a captive-bred specimen?▾

It is native to the humid montane forests of East Africa, in Kenya and northern Tanzania, between 1,500 and 2,500 m; a large proportion of animals in the trade, however, come from populations that were introduced and became feral in Hawaii. The entire family Chamaeleonidae is listed on CITES Appendix II, trade is regulated, and a captive-bred animal is strongly recommended, as wild-caught specimens are often fragile (parasites, stress).

Is this a suitable species for a first chameleon?▾

It is considered intermediate in difficulty: more tolerant than some demanding species, but still easily stressed by heat, confinement or handling, and it requires genuine attention to ventilation and humidity. A motivated, well-informed beginner can succeed, provided they do not compromise on these points.

How big does an adult Jackson's chameleon get?▾

It depends on the subspecies: between 20 and 35 cm in total length. The form most common in captivity, T. j. xantholophus, is also the largest, with males reaching 30 to 35 cm; they are recognisable by their three ringed horns (one rostral, two preorbital), usually absent in females.

What terrarium and vertical space should it have?▾

It needs a very well-ventilated arboreal terrarium, such as a mesh cage, of at least 60 x 60 x 90 cm for a single adult, ideally 60 x 60 x 120 cm. Add plenty of thin horizontal branches at different heights and non-toxic plants (Ficus, pothos, Schefflera) to give it a real volume for moving vertically, essential to this arboreal species. Housing must remain strictly individual.

What temperature must you absolutely never exceed?▾

This is the most critical point: never exceed about 28°C, as prolonged heat above 29-30°C can cause a fatal heat stroke. There is no true basking hotspot, at most a slightly warmer zone around 26-28°C under a low-wattage bulb, with a gradient dropping to 18-22°C on the cool side and a marked night-time drop, down to 12°C, which is beneficial to it.

Does it need UVB?▾

Yes, it is essential: a linear T5 UVB tube at 5-6%, placed above the mesh and replaced every 6 to 12 months, allows vitamin D3 synthesis and prevents fibrous osteodystrophy. You must nonetheless provide shaded areas so it can retreat from the light.

How do you manage humidity and what substrate should you use?▾

Coming from high-altitude cloud forests, it needs a humidity of between 50 and 80%, with misting twice a day and humidity peaks preferably at night; between two mistings, good ventilation must allow the environment to dry out partially, otherwise respiratory or fungal infections can occur. A bare floor or paper towel makes hygiene easier, while a draining bioactive substrate is possible provided you avoid any standing water.

What does it eat and how does it hydrate?▾

It is an insectivore that accepts crickets, fruit flies or houseflies, Blaptica dubia roaches, grasshoppers, silkworms or hornworm caterpillars, with a few snails as an occasional supplement; prey are gut-loaded 24 to 48 hours before being offered and then dusted with calcium, with D3 and vitamins limited to once or twice a month. It never drinks from a bowl of standing water: it licks droplets off the foliage, hence the need for a drip system and twice-daily misting to prevent chronic dehydration.

What is its life expectancy?▾

Its lifespan is between 5 and 10 years, with males more often reaching the upper end of this range; females, worn down by repeated gestations, frequently live shorter lives.

Can it be handled often and can two individuals be housed together?▾

It is better to limit handling: it is a calm, slow animal but easily stressed, particularly by heat and confinement. Males are also territorial and engage in genuine jousts with their horns, which makes strictly individual housing essential — never house two males together.

How does it reproduce?▾

It is a viviparous species: the female does not lay eggs but gives birth to 8 to 30 live young after a gestation of about 5 to 6 months. This reproduction is demanding and carries a risk of dystocia or exhaustion for the mother, who must fully recover between two litters; the young, independent from birth, are raised separately to avoid competition and cannibalism.

What are the main risks to its health?▾

Heat stroke remains the leading cause of death in captivity, hence the importance of never letting the terrarium overheat. Next come fibrous osteodystrophy in the event of a calcium, vitamin D3 or UVB deficiency, respiratory infections linked to stagnant humidity or an overly warm environment, and chronic dehydration that can lead to kidney damage.

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