With no maintenance required what-so-ever, the EcoSphere Aquatic Ecosystem is perfect for time sensitive people who still want the feeling of owning a pet but don't have the time to look after it. These fully enclosed ecosystems contain tiny marine shrimp, algae and micro-organisms making the hand blown glass sphere a fully self sustaining little world. The Ecosphere requires only indirect light and a stable room temperature for the inhabits to thrive.