Veiled Chameleon

Is a veiled chameleon right for you?

The veiled chameleon (Chamaeleo calyptratus), with its tall helmet-like casque, independently moving eyes and projectile tongue, is one of the most commonly kept chameleons. It is considered relatively hardy among chameleons, but chameleons as a group are demanding lizards: they do not drink from a bowl, they are very sensitive to stress and they do not enjoy being handled. This is not a pet to cuddle but an animal to watch in a well-built habitat.

The honest question: can you accept a chameleon living for years mostly unhandled, simply being watched?

Before you adopt

Male or female? For this species it is the most important part of the decision. Males reach 43-61 cm as adults, females 25-35 cm. Males have a small heel projection (tarsal spur) on the hind feet. Females develop eggs even without ever seeing a male. According to a veterinary study on this species, many females are brought to clinics at 6-7 months of age, often under 100 grams, with active ovarian follicles. Females kept without a male risk ovulatory failure and follicular stasis, which is one reason females live shorter lives. Choosing a male for your first chameleon avoids this burden.

Legal status: Like the whole genus Chamaeleo, the veiled chameleon has been listed in CITES Appendix II since 1977, and in the EU it is on Annex B. International trade requires CITES permits (in Turkey, for example, issued by the General Directorate of Nature Conservation and National Parks). Ask for paperwork showing legal origin and prefer captive-bred animals.

A healthy chameleon has full, open eyes, lively colour and a strong grip. Sunken eyes, constantly dark colours during the day, sitting motionless on the enclosure floor, bent legs or an inability to fully shoot its tongue are serious warning signs.

Vivarium set-up

Size and enclosure type

• For an adult male, ReptiFiles' minimum is 60x60x120 cm, Chicago Exotics' is 60x60x90 cm. Bigger is always better.
• A mesh (screen/aluminium) enclosure is preferred. Chameleons need airflow; in a stuffy glass tank humidity and bacteria build up. In dry indoor air a mesh enclosure loses humidity fast; compensate with more frequent watering.
• Place the enclosure away from heavy foot traffic, the television and where other pets can see it.

Plants and branches Plenty of leafy, non-toxic live plants (Chicago Exotics suggests pothos and ficus) and horizontal and diagonal branches of different thicknesses. Leaves are both cover and drinking surfaces. Avoid cotton rope perches.

The heat gradient

Sources differ: ReptiFiles recommends 29 °C at the basking spot, 22-25 °C ambient by day and 13-18 °C at night, while Chicago Exotics gives 32-35 °C for basking and around 24 °C at night. What they agree on: there should be a clear temperature difference between the top and bottom of the enclosure, the animal must be able to choose its temperature, and the heat lamp goes off at night. Place the lamp on top of the mesh; the chameleon must not be able to reach it, or it will get burned.

UVB (non-negotiable)

• A T5 HO tube (5-6%) on top of the mesh; ReptiFiles targets a UV index of about 3 at the basking branch.
• 12 hours on per day, off at night.
• Replace fluorescent tubes every 6-9 months (Chicago Exotics).
• Glass and acrylic block UVB.

Water and humidity: drip watering According to the Merck Veterinary Manual, chameleons drink mainly by licking droplets off leaves and often become dehydrated when they cannot. A water bowl does not work.

• Mist several times a day so the leaves are wet; a timer-controlled automatic mister is the most reliable option.
• In addition, place a dripper on top of the enclosure so water drips onto a leaf.
• Humidity should be about 40-50% by day and 75-100% at night (ReptiFiles and Chicago Exotics). Constant daytime wetness leads to respiratory and skin problems.
• Do not let water pool on the floor; use a drainage tray.

Substrate A bare floor or kitchen paper is the most practical to clean. Avoid small particle substrates that may be swallowed during tongue strikes.

A laying box for females Give a maturing female a box of moist sand-soil mix deep enough to bury her whole body. Constant wandering on the floor looking to dig is a sign she is preparing to lay.

Feeding

The veiled chameleon is mainly insectivorous; some individuals also eat plant leaves. Chicago Exotics notes that small amounts of greens can be offered.

Juvenile (0-6 months)

• Daily, as many small insects as it will eat in 5-10 minutes

Adult

• ReptiFiles: 4-5 insects every other day.

Suitable insects: crickets, dubia roaches, silkworms, locusts, black soldier fly larvae. Mealworms and superworms in limited amounts for variety.

Insect size: no wider than the head.

Feeding method: Chicago Exotics recommends offering insects in a cup they cannot escape from; this reduces both tongue injuries and escaped insects.

Supplements

• Phosphorus-free calcium: 3-4 times a week (Chicago Exotics)
• Multivitamin: once a week
• D3: about twice a month (ReptiFiles); too much D3 and vitamin A is also harmful, so follow product instructions.
• Gut load insects with vegetables or insect food 24 hours beforehand.

Health and lifespan

Males live about 8 years and females about 5. The shorter female lifespan is linked to the burden of continuous egg production, even without a male.

Signs that mean a vet visit:

• Sunken eyes, eyes kept closed for days
• Dark, pale or blotchy colour all day, sitting on the floor
• Inability to shoot the tongue or swelling around the mouth
• Tremors, inability to grip branches, bent legs
• In females: a swollen belly, appetite loss and weakness

Problems common in the species:

• Dehydration and kidney problems: Develop when dripping and misting are inadequate. Sunken eyes, orange or yellow urates. Chicago Exotics notes that inappropriate humidity can lead to kidney damage and gout.
• Egg binding and follicular stasis: The main risk in females. A swollen belly, wandering on the floor without laying, weakness. An emergency; a vet may suggest spaying as a preventive option.
• Metabolic bone disease: Not enough UVB or calcium. Bowed legs, soft jaw, a weak tongue.
• Eye infections: Linked to dirty water and low humidity.
• Tongue injuries: Associated with an unsuitable feeding set-up.
• Burns and foot sores: From reachable lamps and unsuitable perches.

Salmonella: Reptiles can carry Salmonella. Wash your hands after every contact; children under 5 and people with weakened immunity are at higher risk.

Handling and behaviour

Chameleons are very sensitive to stress, and chronic stress weakens the immune system. Keep handling to a minimum.

1. Do not handle unless necessary. When cleaning or visiting the vet, move slowly and deliberately.
2. Place your hand in front and let it climb on. Grabbing from above feels like a predator attack.
3. Never pull it off a branch. Support the front of the body and gently unwind the tail. The tail does not drop, but it does not regenerate if injured.

Signs of stress:

• Turning dark colours
• Gaping, changing colour when it sees another chameleon
• Constantly hiding behind branches, refusing food

Always keep it alone. According to Merck, chameleons are extremely territorial and must be kept separately for long-term survival. Chicago Exotics stresses that males are stressed even by seeing another male; do not place two enclosures side by side.

History and life in the wild

The veiled chameleon is native to the high, dry plateaus and mountain valleys along the border of Yemen and Saudi Arabia. In the wild it prefers temperatures of roughly 24-35 °C and in dry periods also uses leaves as a source of water. Females can lay 35-85 eggs per clutch and up to three clutches a year. Because it breeds readily, most of the pet population is captive-bred. Never release one into the wild.