Iguana GuideA gradient, not a thermostat number
Ectotherms regulate body temperature behaviorally. A captive iguana needs access to warmer and cooler zones rather than one uniform temperature everywhere.
Humidity
Merck's reptile husbandry table describes green iguanas as rainforest-type animals with substantial humidity requirements.
Lighting
Broad-spectrum lighting is listed as an important husbandry requirement. Lighting setup should follow current professional reptile guidance because distance, fixture type and replacement intervals affect performance.
Health questions belong with veterinarians
If an iguana is lethargic, not eating, injured or otherwise unwell, environmental information on this page is not a diagnosis.
Keep exploring
Iguana facts become more useful when anatomy, behavior, species and habitat are connected instead of treated as isolated trivia.
Sources & further reading
Core factual claims on this page were checked against these references.