Egyptian spiny-tailed lizard — Care Sheet & Morphs

Q: How big does an adult Egyptian spiny-tailed lizard get?

An adult Egyptian spiny-tailed lizard typically measures 60–76 cm.

Husbandry requirements

Egyptian spiny-tailed lizard — origin: Deserts and arid steppes of North-East Africa and the Middle East (Egypt, Libya, the Arabian Peninsula, the Levant as far as Iraq/Iran). A species of very hot rocky and sandy habitats..

Terrarium temperature gradient

Night min20 °C

Cool side28–32 °C

Warm side35–42 °C

Basking spot48–55 °C

Heliophilic full-desert species: a genuine, very powerful hot spot is essential (surface temperature at the basking point can reach 50-60 °C). A marked thermal gradient is mandatory, with a cool side allowing the animal to regulate. A natural night-time drop (18-22 °C) is beneficial; no lit night-time heating.

Enclosure (adult)

180 × 90 × 60 cm

Very large-volume terrestrial/fossorial desert terrarium, with deep substrate for burrowing

Minimum dimensions for ONE adult; larger is strongly recommended (ideally 240 x 120 cm or more). A standard terrarium is unsuitable for this giant species. Provide heavy, stable hides, flat slabs/stones under the hot spot and a substrate deep enough to dig in. WARNING: Uromastyx aegyptia is listed under CITES Appendix II (EU Annex B); acquisition, keeping and transfer are regulated and require proof of legal origin.

Humidity

20–40 %

Dry, desert-type environment. Excessive humidity or poor ventilation encourages respiratory and skin infections. The microclimate of the burrows is slightly more humid, which is enough for the animal.

Substrate

Washed play-sand mixed with topsoil free of fertiliser and peatAddition of clay for stable tunnels that do not collapseA deep burrowing zone and a zone of flat slabs/stones

At least 20-30 cm deep in the burrowing zone. Avoid fine, loose, unbound sand served on its own (risk of ingestion and impaction), especially in juveniles; a mix that packs down and holds tunnels is preferable.

UVB

Recommended

High UVB is essential (desert species, Ferguson zone 3-4). A T5 HO 10-12% tube or a mercury-vapour lamp over a long stretch, replaced every 6-12 months. Respect the manufacturer's recommended distance to avoid eye lesions (photokeratoconjunctivitis) and to ensure sufficient vitamin D3 synthesis.

Water source

Always available

No permanent water point (stagnant humidity is harmful). Hydration comes mainly from fresh plants. A small, shallow bowl of water may be offered occasionally, or the substrate/burrow lightly misted from time to time, while ensuring the environment dries out quickly.

Origin

Agamidae

Deserts and arid steppes of North-East Africa and the Middle East (Egypt, Libya, the Arabian Peninsula, the Levant as far as Iraq/Iran). A species of very hot rocky and sandy habitats.

Feeding & health

Diet

Strict herbivore (adult) — Plants: tough desert plants, a mix of edible foliage and flowers

Based on a variety of fibrous plants: dandelion, plantain, endive, lamb's lettuce, alfalfa, turnip leaves, hibiscus, edible flowers, plus a small share of dry seeds/legumes (lentils). Very large quantities are needed because of the animal's size. Avoid excess animal protein and sugary fruit (risk of gout and digestive disorders). Regular calcium + vitamin D3 supplements, especially for breeding females and juveniles.

Breeding

Oviparous

Clutch 20–40 eggs/young. Large clutches, typical of the genus. Requires a laying chamber with deep, moist substrate. Incubation of about 70-90 days at around 30-33 °C depending on the parameters. Captive breeding of this giant species remains uncommon; many available animals are of wild origin.

Health watch points

Metabolic bone disease (MBD) from insufficient UVB or a calcium/D3 imbalance
Digestive obstruction (impaction) linked to ingestion of unsuitable substrate or to dehydration
Respiratory infections encouraged by excessive humidity or an insufficient hot spot
Gout and kidney damage linked to excess protein and/or chronic dehydration
Internal parasitism and a state of malnutrition/dehydration, common in wild-caught specimens

Morphs & genetics

Registry of 0 documented gene for Egyptian spiny-tailed lizard.

Frequently asked questions

Answers to the most common questions about keeping the egyptian spiny-tailed lizard.

How big does an adult Egyptian spiny-tailed lizard get?▾

An adult Egyptian spiny-tailed lizard typically measures 60–76 cm (the largest species of the genus: a heavy, stocky body, up to ~3 kg in large adults. drab colouration (grey, sand, brown), loose, folded skin around the neck and flanks, thick and strongly spiny tail.).

What temperature and humidity does a Egyptian spiny-tailed lizard need?▾

A gradient of roughly 28–32 °C on the cool side to 35–42 °C on the warm side, with a basking spot of 48–55 °C. Humidity 20–40 %.

What does a Egyptian spiny-tailed lizard eat?▾

Strict herbivore (adult): Plants: tough desert plants, a mix of edible foliage and flowers.

Is the Egyptian spiny-tailed lizard a good reptile for beginners?▾

Advanced level. Generally placid and slow-moving because of its massive size, but a heavy burrower that digs long tunnels. It may hiss and lash out with its spiny tail if it feels threatened. The difficulty comes mainly from the enormous space and heat requirements, and from the fact that many specimens on the market are wild-caught (stressed, parasitised, difficult to acclimatise): a captive-bred animal is strongly preferable. Plan ahead: a lifespan of 20–35 yrs.

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