Key Features Grey Finish Simulates Sunrise, Daylight & Sunset Replicates Tropical Forest Conditions Ultrasonic Mister for Humidity Control Features Carbon Filter and Fan for Air Filtration and Circulation The BiOrb Air 60L Terrarium is a unique, fully automated terrarium that creates a perfect micro-climate for growing tropical plants or housing different species of frogs (such has Poison Dart Frogs). By replicating the natural conditions under a tropical rainforest canopy, you are able to create the perfect growing conditions for tropical plants such as Orchids, air Plants, mosses, carnivorous plants and many more. The BiOrb Air 60L Terrarium uses treated sterilised coir compost as the substrate which helps to cultivate the plants roots. The compost sits on top of a capillary matt that draws water up and into the compost from a small reservoir found in the base of the unit to maintain hydration levels. A 24 hour automated light cycle replicates natural daylight and night time though