Uromastyx geyri

Terrestrial desert terrarium

A large floor area is the priority: 120 x 60 cm minimum for an adult, larger is always better. Provide a very marked thermal gradient, plenty of hides and stacks of stable rocks (fixed to the floor to prevent any collapse during burrowing). Good ventilation is essential. Favour a captive-bred animal (see substrate note).

A strictly desert species: a dry, well-ventilated environment. Chronically high humidity encourages respiratory and skin infections.

Provide a deep layer (15-20 cm) for natural burrowing. Avoid digestible "calcium" sands (risk of impaction). WARNING: the genus Uromastyx is listed under CITES Appendix II (EU Annex B): it is imperative to favour a captive-bred animal with a certificate. Wild-caught specimens are frequently parasitised, stressed and dehydrated, and their trade is regulated.

Essential. Powerful UVB of the T5 HO 10-12% type (Ferguson zone 3-4), positioned at the correct distance from the basking spot and renewed every 6 to 12 months. A strongly heliophilic desert species.

No large permanent water point needed. Offer a small dish of clean water for a few hours 1 to 2 times a week, or lightly mist a hide. Most of the hydration comes from fresh plants.

Central and southern Sahara (Niger, Mali, southern Algeria), rocky and arid habitats

Herbivore — No animal prey needed; to be avoided, especially in adults (risk of gout)

Based on a variety of leafy plants (dandelion, endive, lamb's lettuce, clover, rocket, edible flowers) supplemented with dry seeds and legumes (lentils, millet, split peas). Dust regularly with calcium (without D3 if UVB is of good quality) and supplement with vitamins in moderation. Avoid excess spinach/cabbage (oxalates/goitrogens) and any animal protein.

Clutch 8–20 eggs/young. Breeding is generally triggered by a winter cooling/rest period (brumation). Provide a moist, deep laying zone. Incubation of about 55 to 80 days depending on the temperature.

• Metabolic bone disease (calcium deficiency or insufficient UVB)
• Intestinal obstruction / impaction (unsuitable substrate or dehydration)
• Gout (excess animal protein and/or chronic dehydration)
• Obesity (excess fatty seeds, overfeeding, lack of space)
• Respiratory infections (temperature too low or excessive humidity)