To make sure that your herp has the right temperature and humidity, the first step is to ensure that you have purchased the right equipment. At minimum, you need a good thermometer and proper lighting, because light can provide not only warmth, but the nutrients that your herp needs in order to survive. Depending on your pet and its sensitivity, you may need specialized heating equipment like nocturnal heat lamps, basking lights, rock heaters, under-tank heaters, or radiant terrarium heaters, among other items. Research into your specific animal is critical so that you understand its needs. Be very careful how you place your lights and heat sources.
Iguanas especially are prone to lying too close-and being burned as a result.
Cleaning Reptiles are susceptible to skin and bacterial infections if cages and housing are not kept scrupulously clean. Their fecal matter carries bacteria, such as salmonella, that can also contaminate humans. In addition to thoroughly cleaning the cage and all equipment used in the cage and in the cleaning process, they must be disinfected and sterilized periodically. But some soaps and many if not most cleaners, disinfectants, deodorants, herbicides, and pesticides are toxic to your herp. The best products for cleaning your herp's habitat are those specifically designed to be herp-safe.