Geckos, found throughout the world, in warm climates, can range anywhere from 1.6-60cm in length and come in an astoundingly large variety, at about 1,500 different species, worldwide. These small lizards who - unlike their larger cousins, are mostly nocturnal, are often welcome in the house as they help keep it free of insects such as moths and mosquitos.
As they grow, geckos shed their skin. This happens at fairly regular intervals. The Leopard gecko will shed at least once a month. Moisture in the air can help with this shedding process and the gecko will also speed it by pulling off pieces of loose skin and eating it.
Relatively easy to keep as pets, A 15- to 20-gallon tank is more large enough 2-3 geckos, but there should only be one male per habitat. You should only keep males and females together if you want to deal with breeding. Old fish tanks that don't hold water anymore also work perfectly well for ground dwelling species, such as the leopard gecko.
Nearly all geckos have no eyelids and, since they cannot blink, they generally can be seen licking their own eyes to keep them clear of dust and dirt and to keep them moist. About 60% of gecko species have adhesive pads on their toes which allow them to stick to surfaces. Even when there is no surface tension. Being cold-blooded, your enclosure needs to have a variety of temperatures available, so that your gecko can regulate its body temperature. A heat bulb set up in one spot, and reptile heating pads can help with this.