Changes

* Heat should be provided by a radiant source; a 60 to 100 watt incandescent bulb is usually adequate. Daytime temperatures of 29-32°C are optimal with a basking area around 5°C above this. Night temperatures can drop 5°C below the day temperature.

* Heat should be provided by a radiant source; a 60 to 100 watt incandescent bulb is usually adequate. Daytime temperatures of 29-32°C are optimal with a basking area around 5°C above this. Night temperatures can drop 5°C below the day temperature.

Most lizard species, such as iguanas, derive external heat from basking in the sun, not from laying on rocks heated by the sun. Exposure to temperatures above the [[Preferred optimum temperature zone|POTZ]] can result in localised [[Lizard Skin Diseases|burns]], systemic effects and death. The most popular heat source, the hot rock, is therefore inappropriate for many species and may be dangerous.

Most lizard species, such as iguanas, derive external heat from basking in the sun, not from laying on rocks heated by the sun. Exposure to temperatures above the [[Preferred optimum temperature zone|POTZ]] can result in localised [[Lizard Burns|burns]], systemic effects and death. The most popular heat source, the hot rock, is therefore inappropriate for many species and may be dangerous.

== Substrate ==

== Substrate ==