Here are some important things to consider. Remember to consider the adult size of the reptile, how active the species tends to be and any other environmental considerations. Heating and Lighting. Reptiles are ectothermic. They cannot produce their own heat so they rely on their owner to provide it for them.
Some species require very high temperatures, and most species also require a thermal gradient.
Before bringing any reptile home, make sure that you can always supply its proper dietary needs. Vegetarian reptiles often have specific and varied dietary requirements. For reptiles that require a rodent diet, pre-killed prey should be used as live rodents can seriously hurt captive reptiles. Don't take on a long-lived pet unless you are prepared to ensure it receives adequate care throughout its lifespan. There are many different points of view about reptiles as pets.