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Atlas / Library / Iguanidae / Rhinoceros Iguana
CITES I
Iguanidae

Rhinoceros Iguana

Cyclura cornuta

Traceable. The figures above appear in the page we cite, which we opened on 10 Aug 2026. That means you can check them, not that we have confirmed they are right. dubiaroaches.com

Photograph: Kristof Zyskowski · CC BY

Photographed by an observer on iNaturalist and published under a Creative Commons licence; the photographer and the licence are named under the image. It is not an animal of ours, and no animal was handled by us to produce it.

14:00
Day

Drag the sun. The sheet states a night temperature, so the rail follows it.

CITES I is a global listing and holds in every country. National law is not global, and we hold no national wildlife law for any country, Thailand included. Check your own authority before buying or selling.

Check your setup against this sheet I keep one 102 plants usable with this species
Back to the globe My keep

https://keepr.pet/husbandry/en/cyclura-cornuta

‹ All husbandry guides
warm end41 °C
cool end24–31 °C
Humidity60 %
Enclosure244×122×122
Diet1 days

The numbers

Thermal gradient

152025303540 °C
24–31°Cool side
41°Warm side
21°Night

Day: a real gradient, 41°C warm against 24–31°C cool, so the animal chooses. Night: 21°C.

Why

Same scale on every sheet here, so two species compare by eye.

The sheet stateswarm 41 °C / cool 24-31 °C / night 21 °C

Humidity

60%Target RH

The sheet statesmaintained around 60%

UVB

T5 12%required

The sheet statesArcadia Desert 12%, 46" or Zoo Med Reptisun T5 HO 10.0, 46"; 17-18" below the lamp

Identity

Origin

Enclosure and conditions

Enclosure

41 °C60 % RHUVB tube8 ft4 ft
warm sideUVB tube
50100150200 cm
8 × 4 × 4 ft · 244 × 122 × 122 cmWidth × depth × height
298dm² of floor
Substrate: not in our dataWater: not in our dataHides: not in our data

Drawn from the stated numbers. Only what the sheet states is drawn inside.

Why

The rectangle carries the exact width-to-height ratio of the figures above it, and the ruler under it places that width on the 0–250 cm scale every sheet here shares, so two species still compare at a glance. Nothing is added that the sheet does not name: a lamp drawn on a sheet that never mentions one would be invented equipment. What the sheet leaves out is listed rather than left blank, because an empty tank reads as « none needed ».

The sheet statesabsolute minimum 8'L x 4'W x 4'H for a single rhino iguana

Temperature
warm 41 °C / cool 24–31 °C / night 21 °C
Humidity
~60%

What your climate adds

This sheet states a range to hold. Your local climate decides how much work holding it is. Pick the nearest city: nothing is sent anywhere, the choice stays in this browser.

Diet

Feeding rhythm

every 1 dAs the sheet states
28Meals in 28 days

Twenty-eight days, one row. Each band is a meal window.

Why

The windows widen as they go because the interval is a range: four meals after a 10–14 day cycle land anywhere between day 40 and day 56.

The sheet statesherbivores, plant-based diet: Leafy greens daily, Vegetables every other day, Fruit 3x/week, Commercial diet 3x/week

Common questions

Is it dangerous?

A big adult can bite hard enough to need stitches and the tail whip hurts. They tame down, but a careless adult male is genuinely risky.

How long does it live?

Often thirty to fifty years. Plan for who takes it if your life changes.

What does it eat?

Almost all greens, flowers and vegetables. Very little animal protein, because too much protein harms them long term.

Do I need paperwork?

Yes, it is a CITES-listed species, so buy only with proper documents and keep them. We hand the papers over with the animal.

What it needs

Enclosure at least 244 × 122 × 122 cmbecause enclosure — absolute minimum 8'L x 4'W x 4'H for a single rhino iguana
A heat sourcebecause temp — warm 41 °C / cool 24-31 °C / night 21 °C
A thermostat to regulate itbecause temp — warm 41 °C / cool 24-31 °C / night 21 °C
A thermometerbecause temp — warm 41 °C / cool 24-31 °C / night 21 °C
A way to check the night figurebecause temp — warm 41 °C / cool 24-31 °C / night 21 °C
A hygrometerbecause humidity — maintained around 60%
UVB 12-12% (T5), stated as requiredbecause uvb — Arcadia Desert 12%, 46" or Zoo Med Reptisun T5 HO 10.0, 46"; 17-18" below the lamp

Every line above is deduced from a value this sheet states, and names which one. Nothing here is a general recommendation.

Sources

dubiaroaches.com — lu le 2026-08-04speciesplus.net — lu le 2026-08-08gbif.org — lu le 2026-08-08

Others in this group

Green IguanaIguana iguanaGreen AnoleAnolis carolinensisChinese Crocodile LizardShinisaurus crocodilurusDesert iguanaDipsosaurus dorsalisChuckwallaSauromalus aterKnight AnoleAnolis equestrisArmadillo Girdled LizardOuroborus cataphractusLong-tailed Grass LizardTakydromus sexlineatus

What this sheet states

77%
TemperatureHumidityEnclosure sizeActivityOriginDietSourcesUVB

This sheet states 5 of 7 of the fields this product runs on. What is missing turns something off: day/night engine and awake count on the globe, the diet section. We show the gap rather than fill it with a plausible number.

UVB is measured but does not count: it is absent from 421 of 678 sheets, and on most of them that is not a gap, since a nocturnal snake's sheet has no reason to state a UV index. Counting it would call the library incomplete without cause.