Rhino iguanas (Cyclura cornuta) are up to 4 1/2’ long, diurnal, terrestrial lizards native to Haiti and the Dominican Republic. True to their name, rhino iguanas are generally dull gray in color, and males have a notable horn-like projection on their snouts, which resembles a rhino horn.
Due to their size, rhino iguanas are advanced-level reptiles.
Adult rhino iguanas should be housed in no smaller than a 8’L x 4’W x 3’H enclosure. Although these lizards are primarily terrestrial, they appreciate climbing opportunities, so larger and taller would not be wasted.
The floor of the enclosure should be covered with a humidity-friendly substrate such as soil, coconut fiber, or cypress mulch. In addition to substrate, your enclosure will also need sturdy branches for climbing, and places to hide.
You will also need a large water bowl large enough for the iguana to soak in. Mist the enclosure with a pressure sprayer as needed to maintain a humid environment, at least once a day each evening.
Heating and Lighting
Rhino iguanas require a basking area with surface temperatures between 100-115°F. This should be provided with a cluster of multiple halogen flood heat lamps to create a basking area large enough to evenly heat the iguana’s entire body. The air temperature in the remainder of the enclosure should range from the high 80’s on the hot side to the high 70’s on the cool side.
In addition, you will need appropriate UVB lighting. This bulb should be Zoo Med or Arcadia brand, half the length of the enclosure, placed on the warm side, and T5 HO diameter. Use a Solarmeter 6.5 to make sure you have the correct UVB intensity in the basking area.
Heating and lighting should be turned off at night.
Food and Supplementation
Rhino iguanas are entirely herbivorous, which means they do not eat any animal-based foods at all. Their diet should consist primarily of a variety of dark leafy greens and other vegetables such as squash, bell peppers, and green beans, as well as flowers such as dandelions and hibiscus. Fruit can be used as an occasional treat.
Each meal should be dusted with Repashy SuperVeggie supplement to help cover any nutritional gaps.
*This care sheet contains only very basic information. If you are new to rhino iguanas, please do additional research to obtain additional information from more detailed care sheets.