Bearded Dragon Care in the UK — UVB, Basking, Humidity & Diet

According to the RSPCA and PDSA, bearded dragons (Pogona vitticeps) are active diurnal lizards needing generous space:

• Minimum size — adults need at least 120 cm long vivarium; larger is better for thermoregulation and enrichment
• Substrate — reptile carpet, tiles or paper for beginners; loose substrates risk impaction in juveniles
• Hides — one on the warm side, one on the cool side
• Branches and rocks — sturdy basking platform under the heat and UVB zone

Never use heat rocks — they cause severe burns. All heat must come from overhead ceramic or basking bulbs on thermostats.

Bearded dragons must move between warm and cool areas to regulate body temperature:

Measure with digital thermometers at basking surface and cool end — dial gauges on glass are unreliable.

Use a dimming thermostat on the basking bulb to prevent overheating. Ceramic emitters provide night warmth without light if room temperature drops too low.

According to RSPCA reptile guidance, bearded dragons are UVB-dependent — without it they develop metabolic bone disease (MBD):

• Tube UVB — use a reptile-specific T5 or T8 tube spanning much of the vivarium length
• Distance — follow manufacturer chart (typically 25–40 cm from basking spot)
• Replacement — every 6–12 months even if still glowing; UV output fades silently
• No obstruction — mesh blocks UV; glass filters it completely

Combine UVB with calcium and vitamin D3 supplementation on insects per vet advice — UVB alone does not replace dietary calcium.

Bearded dragons come from arid Australian habitats. UK homes vary — aim for 30–40% ambient humidity:

• Provide a shallow water dish — many dragons ignore it but some drink
• Misting lightly once or twice weekly can aid shedding; avoid soaking the whole tank
• Shedding problems — retained toes or tail tips suggest low humidity, dehydration or illness

A separate bath in lukewarm water 10–15 minutes during difficult sheds is acceptable if supervised — never leave unattended.

High humidity with poor ventilation causes respiratory infection — ensure adequate airflow without draughts on the basking dragon.

According to the PDSA:

Juveniles (0–12 months)

• 80% live insects — locusts, crickets, dubia roaches sized appropriately
• 20% leafy greens — spring greens, dandelion, squash
• Feed 2–3 times daily; dust insects with calcium most feeds and multivitamin weekly

Adults (12+ months)

• 80% vegetables and greens — kale, pepper, squash, occasional fruit
• 20% insects — 2–3 insect feeds per week
• Daily salad; avoid spinach and iceberg lettuce as staples

Never feed avocado, rhubarb, fireflies or glowing insects — toxic. Avoid mealworms as a staple for juveniles (hard chitin, impaction risk).

Bearded dragons often tolerate handling when warmed and supported fully. Limit sessions to 15–20 minutes. Support the body and tail; never grab by the tail.

Brumation — reduced activity and appetite in winter is normal in adults. Confirm with your vet that weight and health are adequate before assuming brumation.

Contact an exotic vet promptly if you notice:

• Swollen limbs or soft jaw (MBD)
• Not eating for more than 3–5 days (outside brumation)
• Diarrhoea, weight loss or sunken eyes
• Open-mouth breathing, wheezing or nasal discharge
• Paralysis or seizures

Most UK bearded dragon illness traces to incorrect UVB, temperatures or diet — review husbandry while booking the vet appointment.

For general reptile species comparison, see Reptile care UK — this article focuses specifically on bearded dragon needs.