Exo Terra Glass Terrarium – Nano – The smallest Exo Terra glass terrarium (approximately 8″ cube). Designed for very small species or as a temporary/quarantine enclosure, it still includes the front ventilation strip and single front door (or pair of mini doors) with a lock. The screen top is removable for decorating or cleaning. This Nano terrarium is often used for invertebrates (like a praying mantis or spiderling) or tiny amphibians. It’s also popular for showcasing a slice of nature on a desktop. Despite its tiny volume, you can maintain micro-habitats like a mini rainforest with frequent misting or a dry micro-desert, and the build quality ensures even the tiniest pets are secure.