Geometric Iguana

Iguanas are very large lizards that can live 20 or more years in captivity and can grow as long as six feet, nose to tail tip. More than half of their body length is due to their tail. Adult males can weigh up to nine pounds, with some especially large ones reaching as much as 18 pounds, while smaller females may grow up to seven pounds.

So, first thing to know if you’re thinking of having an iguana is that you need to plan on having a very large tank or enclosure, in which the animal can stretch out and turn around. While small iguanas can be housed in aquariums, as they age, they generally outgrow the tanks and must be housed in a penned-off area or small room where the temperature, humidity and ultraviolet (UV) light exposure can be controlled. An iguana enclosure should be at least twice as long as the iguana and should be a minimum of six feet high, as they like to climb.