Desert Iguana (Dipsosaurus dorsalis)

Desert Iguana (Dipsosaurus dorsalis) Care Sheet

The Desert Iguana (Dipsosaurus dorsalis) is a highly heat-adapted, predominantly herbivorous lizard native to the deserts of the southwestern United States and northwestern Mexico.

It is one of the most heat-tolerant lizards commonly encountered in herpetoculture and is frequently active at temperatures that would cause many other reptiles to seek shelter. This makes correct heating particularly important, but it does not mean that the entire enclosure should be extremely hot.

Desert Iguanas naturally inhabit arid environments, particularly areas associated with creosote bush, where they bask, forage, dig and retreat into burrows. Captive accommodation should reproduce this combination of intense sunlight, high surface temperatures, open ground, vegetation, digging opportunities and secure underground retreats.

Their predominantly herbivorous diet is another important distinction. Adults should receive a varied selection of appropriate leafy greens, edible flowers and other suitable plant material rather than being maintained primarily on insects.

Successful husbandry centres on a spacious terrestrial enclosure, deep diggable substrate, an intense but localised basking zone, extremely bright visible lighting, strong but correctly measured UVB, appropriate plant-based nutrition and access to cooler secure retreats.

Quick Facts

Scientific name: Dipsosaurus dorsalis
Common name: Desert Iguana
Family: Iguanidae
Native range: Southwestern United States and northwestern Mexico
Lifestyle: Terrestrial and fossorial
Activity: Diurnal
Adult length: Approximately 30–40 cm total length
Lifespan: Approximately 8–15+ years with excellent care
Experience level: Intermediate
Diet: Predominantly herbivorous
Adult enclosure: Approximately 120 × 60 × 60 cm minimum for one adult; larger strongly preferred
Basking surface: Approximately 45–50°C
Warm ambient: Approximately 30–35°C
Cool area: Approximately 24–28°C
Night temperature: Approximately 18–23°C
UVB: Essential
Target basking UVI: Approximately 4.0–6.0
Practical UVB: High-output linear T5 HO UVB system installed at the correct distance
Humidity: Generally low-to-moderate ambient humidity, approximately 30–50%, with access to slightly more humid substrate/burrow microclimates
Water: Fresh water should remain available
Handling: Limited; primarily an observation species
Social housing: Individual housing safest
Reproduction: Egg-laying
CITES: Not currently CITES-listed

Natural Distribution

Desert Iguanas naturally occur across desert regions of:

  • California
  • Nevada
  • Arizona
  • Baja California
  • Sonora
  • Northwestern Mexico

Their distribution is strongly associated with hot, arid environments.

Natural Habitat

Habitats include:

  • Mojave Desert
  • Sonoran Desert
  • Sandy desert
  • Gravelly flats
  • Creosote bush habitat
  • Dry washes

Creosote Bush

Desert Iguanas are particularly associated with:

creosote bush (Larrea tridentata)

They use these environments for:

  • Food
  • Shade
  • Cover
  • Burrowing sites

Heat Adaptation

Desert Iguanas are exceptionally tolerant of high temperatures.

They may remain active during periods when many sympatric lizards have already retreated from the heat.

This does not mean they cannot overheat in captivity.

Why Captive Overheating Is Still Possible

In nature, an animal exposed to intense heat can retreat:

  • Underground
  • Beneath vegetation
  • Into deep shade

A captive animal trapped inside an enclosure where every area is hot has no such option.

The correct approach is therefore:

very hot basking zone + genuinely cooler retreat

Appearance

Desert Iguanas are relatively slender lizards with:

  • Long tails
  • Small heads
  • Powerful limbs
  • Fine scales
  • A low dorsal crest

Colour

Typical colouration includes:

  • Pale grey
  • Cream
  • Tan
  • Light brown

with darker:

  • Reticulation
  • Spots
  • Bars

The pale body colour helps reflect intense desert sunlight.

Adult Size

Adults commonly reach approximately:

30–40 cm total length

Much of this consists of tail.

Behaviour

Desert Iguanas are active daytime lizards.

Normal behaviour includes:

  • Basking
  • Foraging
  • Digging
  • Exploring
  • Feeding on vegetation
  • Retreating underground

Temperament

They are generally alert and fast.

Some captive-bred animals become accustomed to keeper activity, but they should primarily be considered:

observation reptiles

Handling

Handling should be limited.

If handling is necessary:

  • Support the body
  • Avoid grabbing the tail
  • Work calmly
  • Prevent falls

Tail Autotomy

Like many lizards, Desert Iguanas can lose part of the tail defensively.

Never restrain the animal by its tail.

Enclosure Size

For one adult, approximately:

120 × 60 × 60 cm

should be considered a practical minimum.

Larger accommodation such as:

150 × 75 × 75 cm

or greater provides considerably more opportunity for natural behaviour and better environmental gradients.

Floor Space

Floor space is particularly important.

Desert Iguanas are active terrestrial foragers.

Enclosure Construction

The enclosure must tolerate:

  • High basking temperatures
  • Strong lighting
  • UVB
  • Digging
  • Dry substrate

Substrate

Provide a deep, naturalistic and diggable substrate.

Suitable mixtures can include:

  • Washed play sand
  • Organic topsoil
  • Clay-based components

A soil/sand mixture is generally preferable to a loose layer of pure fine sand.

Substrate Depth

Provide approximately:

15–25 cm

where practical.

Deeper areas are beneficial.

Why Digging Matters

Digging allows:

  • Natural behaviour
  • Exercise
  • Security
  • Thermoregulation
  • Humidity regulation

Burrows

Provide artificial burrows and secure hides in addition to diggable substrate.

Suitable retreats may include:

  • Cork tubes
  • Buried hides
  • Rock-like caves
  • Secure tunnels

Burrow Temperature

Burrows should remain substantially cooler than the exposed basking surface.

This provides an essential thermal refuge.

Humid Microclimate

Although the species comes from arid habitat, underground retreats naturally provide somewhat higher humidity than exposed desert surfaces.

A slightly more humid deep retreat can therefore be beneficial.

Rocks

Secure rocks can provide excellent:

  • Basking surfaces
  • Climbing opportunities
  • Visual structure

Rock Safety

Heavy rocks should be supported directly by the enclosure floor or otherwise secured.

Do not place unstable heavy rocks on top of deep substrate where the animal can excavate underneath them.

Branches

Low branches and sturdy pieces of wood can provide additional enrichment.

This is primarily a terrestrial species, so extreme climbing height is unnecessary.

Temperature Gradient

Correct temperature is one of the most important aspects of Desert Iguana husbandry.

Basking Surface Temperature

Provide a broad basking surface around:

45–50°C

Some individuals may utilise slightly warmer surfaces when a full thermal gradient is available.

Warm Ambient Temperature

Maintain warmer daytime air temperatures around:

30–35°C

Cool Area

The cooler end should remain around:

24–28°C

Night Temperature

Night temperatures can generally fall to approximately:

18–23°C

A meaningful nighttime reduction is appropriate.

Basking Surface Is Not Air Temperature

This distinction is extremely important.

A rock surface can measure:

48°C

while the surrounding air remains much cooler.

The whole enclosure should not be maintained at 45–50°C.

Broad Basking Zone

The basking zone should warm most of the animal’s body.

A tiny concentrated hot spot is less useful than a broad evenly heated surface.

Heating

Suitable overhead heat sources include:

  • Halogen flood lamps
  • Appropriate incandescent flood lamps

Multiple Lamps

In larger enclosures, two lower-powered flood lamps may create a better basking zone than one extremely intense narrow lamp.

Heat Safety

All lamps must be positioned where the animal cannot contact them.

Temperature Measurement

Use:

Digital probe thermometers for ambient temperature.

Use an:

Infrared thermometer

to measure basking surfaces.

Do not estimate basking temperature by touching the rock.

UVB

UVB is essential.

Desert Iguanas naturally inhabit environments with intense solar exposure.

Appropriate UVB supports:

  • Vitamin D3 synthesis
  • Calcium metabolism
  • Bone health
  • Muscle function
  • Normal growth

Target UVI

At the principal basking position, aim for approximately:

UVI 4.0–6.0

UV Gradient

A useful enclosure may provide approximately:

Main basking zone: UVI 4–6

Surrounding illuminated area: UVI 2–3

Partially shaded area: below UVI 2

Deep shade/burrow: approaching UVI 0

What Does UVI Mean?

UVI means Ultraviolet Index.

It tells us approximately how much biologically effective ultraviolet radiation reaches the lizard at a particular location.

For the Desert Iguana, we are recreating:

strong desert sunlight

but the animal must still be able to escape it.

What UVB Lamp Do I Actually Need?

For most adult Desert Iguana enclosures, use a:

high-quality high-output linear T5 HO UVB tube

positioned over the basking area.

Depending upon:

  • Enclosure height
  • Lamp distance
  • Reflector
  • Mesh

this will often mean a tube marketed somewhere around the:

10–14% UVB class

in many common setups.

However, the percentage printed on the lamp is not itself the target.

Should I Automatically Buy a 14% Tube?

No.

A high-output lamp positioned too close can provide excessive UV exposure.

A lower-output lamp installed closer may provide exactly the required UVI.

The correct equipment depends upon the actual enclosure.

What This Means in Practice

If you are setting up a Desert Iguana enclosure for the first time, you should generally be looking for:

a proper linear T5 HO desert UVB system

rather than a small compact UVB bulb.

Place it over the main basking area.

The basking area should combine:

HEAT + BRIGHT LIGHT + UVB

Then provide routes into:

partial shade → deep shade → burrow

Why UVB and Heat Should Overlap

In nature, the sun provides:

  • Heat
  • Visible light
  • UVA
  • UVB

at the same time.

Placing heat and UVB together creates a much more natural basking cue.

UVB Coverage

The UVB tube should provide useful coverage across a meaningful part of the basking zone.

It should not produce one tiny UV patch over an otherwise brightly heated area.

Mesh

Mesh can reduce UV exposure.

If the lamp sits above mesh, account for this when determining:

  • Lamp strength
  • Distance
  • Basking platform height

Measuring UV

The best method is an appropriate:

UV Index meter

Measure approximately at the height of the animal’s back while it is naturally basking.

If You Don’t Own a UV Meter

Many first-time keepers will not.

In that situation:

  • Choose a reputable T5 HO UVB system
  • Follow the manufacturer’s current distance chart
  • Account for mesh
  • Provide extensive shaded retreats
  • Replace the lamp according to manufacturer guidance

Do not simply buy the strongest UVB lamp available and position it as close as possible.

Visible Lighting

Bright visible lighting is extremely important.

This species naturally experiences exceptionally bright desert conditions.

A dim enclosure with a hot bulb does not accurately recreate desert daylight.

Daylight LED

Additional bright daylight LED lighting is strongly recommended.

It can improve:

  • Activity
  • Feeding
  • Natural basking behaviour
  • Circadian rhythm
  • Plant growth where suitable vegetation is used

Photoperiod

Provide approximately:

12–14 hours of daylight during summer/activity periods

Shorter winter photoperiods may be used as part of seasonal cycling.

Night Lighting

The enclosure should become dark at night.

Do not use visible:

  • Red
  • Blue
  • Purple

night lamps.

Humidity

General ambient humidity can remain approximately:

30–50%

depending upon room and seasonal conditions.

Do Not Chase a Humidity Number

Humidity naturally changes with:

  • Temperature
  • Time of day
  • Substrate depth
  • Burrow depth

Providing appropriate microclimates is more useful than attempting to maintain one exact number.

Humid Retreat

Provide access to a slightly more humid retreat, particularly during:

  • Shedding
  • Dry weather
  • Juvenile growth

Ventilation

Good ventilation is essential.

Water

Fresh clean water should remain available.

Desert reptiles still require water.

Do Desert Iguanas Drink?

Yes.

Although adapted to arid environments and obtaining significant moisture from food, captive animals should have access to fresh drinking water.

Water Bowl

Provide a shallow, stable water dish.

Keep it clean.

Diet

Desert Iguanas are:

predominantly herbivorous

especially as adults.

Plant-Based Diet

The majority of the adult diet should consist of a varied selection of:

  • Leafy greens
  • Edible flowers
  • Suitable vegetables
  • Other safe plant matter

Suitable Leafy Greens

Useful options can include:

  • Dandelion greens
  • Collard greens
  • Mustard greens
  • Turnip greens
  • Endive
  • Escarole
  • Rocket/arugula
  • Watercress

Availability varies by region.

Edible Flowers

Suitable pesticide-free flowers may include:

  • Hibiscus
  • Nasturtium
  • Rose petals
  • Dandelion flowers

Vegetables

Suitable vegetables can include moderate quantities of:

  • Squash
  • Courgette
  • Bell pepper
  • Green beans
  • Grated carrot

Vegetables should complement rather than replace leafy greens.

Dietary Variety

Do not rely on one green every day.

A varied rotation provides a broader nutritional profile.

Calcium-to-Phosphorus Balance

Choose foods that support an appropriate overall:

calcium-to-phosphorus ratio

Oxalates

Some plants contain substantial oxalates that can bind calcium.

Foods such as spinach should therefore not form a major dietary staple.

Goitrogenic Foods

Some plants contain compounds that may interfere with thyroid function when fed excessively.

Variety prevents dependence upon any single problematic food.

Fruit

Fruit should be:

limited

It is generally higher in sugar than the leafy plant material that should dominate the diet.

Small occasional amounts can be offered.

Suitable Occasional Fruit

Examples include:

  • Berries
  • Papaya
  • Fig

Animal Protein

Juvenile Desert Iguanas may consume more insects than adults.

Adults are predominantly herbivorous.

Insects

Appropriately sized insects may be offered:

occasionally, particularly to juveniles.

Suitable options include:

  • Crickets
  • Roaches
  • Locusts
  • Black soldier fly larvae

Do Adults Need Lots of Insects?

No.

A captive adult should not be maintained on a heavily insect-based diet simply because it will eat them.

Why Limit Animal Protein?

A diet excessively rich in animal protein does not reflect the predominantly herbivorous feeding ecology of adult Desert Iguanas.

Commercial Diets

A high-quality formulated herbivorous reptile diet may sometimes complement fresh foods.

It should not automatically replace a varied fresh plant diet.

Calcium

Plant foods should be supplemented appropriately with:

plain calcium

depending upon overall diet and UVB provision.

Vitamin D3

With effective UVB exposure, dietary vitamin D3 should generally be used sparingly.

Multivitamin

A suitable reptile multivitamin can be offered periodically according to the overall diet.

Juvenile Feeding

Juveniles should generally be offered fresh food:

daily

with occasional appropriately sized invertebrates.

Adult Feeding

Adults should generally receive fresh plant food:

daily

with quantities adjusted according to body condition.

Remove Spoiled Food

Fresh greens can deteriorate rapidly in a hot enclosure.

Remove:

  • Wilted food
  • Fermenting fruit
  • Contaminated leftovers

promptly.

Body Condition

A healthy Desert Iguana should appear:

  • Lean
  • Muscular
  • Active

Obesity should be avoided.

Feeding Enrichment

Encourage natural foraging by:

  • Hanging greens
  • Placing food at several locations
  • Offering edible flowers among furnishings
  • Varying presentation

Social Housing

Individual housing is the safest general recommendation.

Males

Adult males may become territorial, particularly during breeding periods.

Groups

Experienced keepers may maintain compatible groups in very large enclosures.

However, cohabitation can produce:

  • Competition
  • Stress
  • Unequal basking access
  • Unequal feeding
  • Breeding pressure

Sexing

Sexual differences become more apparent with maturity.

Males may develop:

  • Larger femoral pores
  • Broader heads
  • More pronounced breeding colouration

Seasonal Behaviour

Desert Iguanas naturally experience seasonal changes.

Captive behaviour may change according to:

  • Temperature
  • Photoperiod
  • Reproductive cycle

Winter Activity

Animals may become less active during cooler periods.

However, unexplained lethargy should never automatically be assumed to be seasonal.

Brumation

Seasonal cooling may be used by experienced keepers and breeders.

Only healthy animals in appropriate body condition should undergo deliberate cooling.

Breeding

Desert Iguanas are:

egg-laying

Courtship

Breeding behaviour can include:

  • Territorial displays
  • Chasing
  • Increased activity
  • Colour changes

Nesting

Females require access to a suitable laying area.

Provide deep substrate that is:

  • Diggable
  • Slightly moist
  • Warm
  • Structurally stable

Clutch Size

Females may produce approximately:

3–8 eggs

although clutch size varies.

Female Nutrition

Reproductive females require excellent:

  • Calcium
  • UVB
  • Hydration
  • Nutrition

Signs of Gravid Behaviour

A female may:

  • Dig repeatedly
  • Explore enclosure edges
  • Become restless
  • Reduce appetite
  • Investigate potential nesting areas

Egg Retention

Seek veterinary assistance for:

  • Persistent straining
  • Severe lethargy
  • Hind-limb weakness
  • Abnormal swelling
  • Repeated unsuccessful nesting attempts

Incubation

Eggs can generally be incubated around:

28–30°C

under stable conditions.

Incubation Duration

Incubation may commonly last approximately:

50–70+ days

depending upon temperature and conditions.

Egg Handling

Avoid rotating eggs unnecessarily after laying.

Incubation media should remain appropriately moist rather than saturated.

Hatchlings

Hatchlings require:

  • Secure terrestrial accommodation
  • Diggable substrate
  • Appropriate basking heat
  • Strong but correctly positioned UVB
  • Bright visible lighting
  • Secure hides
  • Fresh water
  • Fresh plant food
  • Appropriately sized insects

Hatchling Diet

Young animals can receive:

  • Finely chopped leafy greens
  • Edible flowers
  • Appropriate vegetables
  • Small live insects

The diet should gradually become increasingly plant-based as animals mature.

Hatchling UVB

Provide appropriate UVB from the beginning.

Growing animals have substantial calcium requirements.

Quarantine

New animals should undergo quarantine.

Approximately:

90 days

is a sensible starting point.

Quarantine Monitoring

Monitor:

  • Weight
  • Appetite
  • Faeces
  • Hydration
  • Skin
  • Eyes
  • Respiration
  • Activity

Parasite Screening

Veterinary faecal screening is particularly valuable for:

  • Wild-origin animals
  • Imports
  • Animals of uncertain history

Captive-Bred Preference

Captive-bred animals should be strongly preferred.

Advantages include:

  • Known history
  • Reduced parasite concerns
  • Better adaptation to captivity
  • Reduced pressure on wild populations

Shedding

Healthy Desert Iguanas generally shed successfully when provided with:

  • Appropriate hydration
  • Diggable substrate
  • Rough surfaces
  • Access to a slightly humid retreat

Retained Shed

Check particularly around:

  • Toes
  • Tail tip

Metabolic Bone Disease

Inadequate:

  • UVB
  • Calcium
  • Nutrition

can contribute to metabolic bone disease.

Possible signs include:

  • Tremors
  • Weakness
  • Limb deformity
  • Soft jaw
  • Difficulty walking
  • Fractures

Dehydration

Possible signs include:

  • Sunken eyes
  • Reduced skin elasticity
  • Lethargy
  • Poor appetite

Do not assume an arid species cannot become dehydrated.

Overheating

Possible signs include:

  • Persistent gaping
  • Frantic escape attempts
  • Remaining continuously in the coolest area
  • Loss of coordination
  • Severe lethargy

Overheating is an emergency.

Respiratory Disease

Warning signs include:

  • Wheezing
  • Clicking
  • Nasal discharge
  • Persistent open-mouth breathing when not thermoregulating
  • Severe lethargy

Signs of Good Health

A healthy Desert Iguana should generally display:

  • Clear alert eyes
  • Strong coordinated movement
  • Regular basking
  • Active foraging
  • Good appetite
  • Healthy skin
  • Normal faeces
  • Lean muscular body condition

Warning Signs

Seek veterinary advice for:

  • Persistent food refusal
  • Significant weight loss
  • Weakness
  • Tremors
  • Limb deformity
  • Jaw abnormalities
  • Respiratory symptoms
  • Persistent diarrhoea
  • Severe lethargy
  • Reproductive difficulty

Common Husbandry Mistakes

Assuming “Desert” Means a Small Dry Tank

Desert environments are spacious and environmentally complex.

Enclosure Too Small

These are active terrestrial lizards.

Thin Substrate

Provide genuine digging opportunities.

No Burrow

A hot-climate animal still requires a cool secure retreat.

Entire Enclosure Too Hot

Provide intense localised heat with a genuine cool end.

Basking Temperature Too Low

Desert Iguanas are high-temperature baskers.

Tiny Hot Spot

Create a broad basking zone.

No UVB

Strong UVB is essential for this diurnal desert species.

Using Only a Small Compact UVB Bulb

A quality linear T5 HO system provides much more useful coverage.

Automatically Buying the Strongest UVB Lamp

Correct exposure depends upon distance.

No Shade

Even a desert specialist must be able to escape ultraviolet exposure.

Dim Lighting

A hot but dark enclosure does not reproduce desert daylight.

No Water Because It Is a Desert Species

Fresh water should still be available.

Feeding Mainly Insects

Adults are predominantly herbivorous.

Feeding Too Much Fruit

Fruit should remain limited.

Feeding Lettuce as the Main Diet

Many common lettuces provide relatively poor nutrition compared with more suitable leafy greens.

Feeding Spinach as a Staple

High-oxalate foods should not dominate the diet.

No Dietary Variety

Rotate suitable greens, vegetables and edible flowers.

Poor Calcium Provision

Herbivorous reptiles still require careful mineral balance.

Housing Multiple Males Together

Territorial aggression may occur.

Conservation and Trade

The Desert Iguana is not currently listed under CITES.

However, collection and wildlife regulations can be strict within parts of its natural range.

Captive-bred animals should be strongly preferred.

Always check current legislation relating to:

  • Acquisition
  • Collection
  • Import
  • Export
  • Transport
  • Keeping
  • Sale

Responsible Ownership

Before acquiring a Desert Iguana, ensure you can provide:

  • A spacious terrestrial enclosure
  • Approximately 120 × 60 × 60 cm or larger adult accommodation
  • Deep diggable substrate
  • Secure burrows
  • A broad basking surface around 45–50°C
  • A genuine cool retreat
  • High-output linear T5 HO UVB
  • Correct lamp distance
  • Approximately UVI 4–6 at the main basking position
  • Complete UV shade
  • Very bright visible daytime lighting
  • Fresh water
  • A varied plant-based diet
  • Suitable leafy greens
  • Edible flowers
  • Appropriate calcium supplementation
  • Limited fruit
  • Limited animal protein
  • Secure housing
  • Specialist reptile veterinary care

Suitability

Advantages

  • Fascinating desert specialist
  • Highly active during the day
  • Predominantly herbivorous
  • Attractive natural colouration
  • Interesting digging and basking behaviour
  • Excellent naturalistic display species
  • Manageable adult size compared with many other iguanids

Considerations

  • Requires very high basking temperatures
  • Requires strong UVB
  • Requires exceptionally bright lighting
  • Requires substantial floor space
  • Requires deep substrate
  • Requires careful thermal gradients
  • Primarily an observation animal
  • Correct plant nutrition requires planning
  • Captive-bred animals may be less commonly available than mainstream lizards

Summary

The Desert Iguana (Dipsosaurus dorsalis) is a highly specialised desert lizard adapted to extreme heat, intense sunlight and a predominantly plant-based diet.

Successful husbandry centres on:

  • Approximately 120 × 60 × 60 cm or larger adult accommodation
  • Larger housing strongly preferred
  • Approximately 15–25 cm or deeper diggable substrate
  • Secure burrows and shaded retreats
  • A broad basking surface around 45–50°C
  • Warm ambient temperatures around 30–35°C
  • Cooler areas around 24–28°C
  • Night temperatures around 18–23°C
  • Low-to-moderate ambient humidity
  • Slightly more humid underground retreats
  • Constant access to fresh water
  • A high-output linear T5 HO UVB system
  • Approximately UVI 4–6 at the principal basking position
  • Progressively lower UV exposure and complete shade
  • Extremely bright visible daytime lighting
  • A predominantly herbivorous diet
  • Varied leafy greens
  • Edible flowers
  • Appropriate vegetables
  • Limited fruit
  • Limited animal protein
  • Appropriate calcium and vitamin supplementation
  • Individual housing as the safest general recommendation
  • Captive-bred animals strongly preferred

UVB in Simple Terms

If you are at an expo choosing equipment and “UVI 4–6” sounds overly technical, the practical message is:

Desert Iguanas need strong desert-level UVB.

You should normally be looking for a:

high-output linear T5 HO UVB tube

rather than a small compact UVB bulb.

For many typical adult enclosures, this may mean a tube somewhere around the:

10–14% UVB class

when installed at the correct distance.

But that does not mean:

“Desert Iguana = automatically buy the strongest 14% tube.”

A strong tube positioned too close can expose the animal to excessive UV.

What matters is what reaches the lizard at its basking position.

The technical target there is approximately:

UVI 4–6

The enclosure should then transition from:

VERY BRIGHT + HOT + UVB

to:

partial shade → deep shade → burrow

If you do not own a UV meter, choose a reputable T5 HO desert UVB system and follow the manufacturer’s current distance guidance for that exact lamp.

Also remember that heat and UVB are different things. A basking bulb makes heat; a UVB tube supplies ultraviolet radiation. In most setups you need both, ideally overlapping at the main basking area.

That gives the animal something much closer to what it experiences outside:

a patch of artificial “sun”, with somewhere cooler and darker to retreat.


IMPORTANT INFORMATION:

This care sheet provides general husbandry guidance and does not replace species-specific research or veterinary advice. Individual requirements may vary.

Always check current legislation governing the acquisition, collection, import, transport, keeping, breeding or sale of reptiles in your jurisdiction.

If you have concerns about an animal’s health or care, consult a suitably experienced exotic or reptile veterinarian.

Information correct at the date of publication.

reptilecommunity.com | Revised: August 2026