Ideally, the terrarium heater or the heating medium simulates a day/night temperature gradient during the course of the day corresponding to the natural habitat of the animals. Corresponding information can be sought using the weather information of the countries of origin. Some examples of the temperature requirements of popular terrarium animals:
- Bearded dragon: day 30 – 35°C, night 18 – 20°C
- Tarantula: day 26 – 28°C, night 21°C
- Corn snake: day 25 – 28°C, night 24 – 26°C
- Leopard gecko: day 28 – 30 °C, night 18 – 23 °C
- Emperor scorpion: day 29 – 31°C, night 20°C
- Panther chameleon: day 28 – 32°C, night <18°C
These examples illustrate the sometimes considerable temperature fluctuations that are fundamental for the health and well-being of the animals.