The EcoTerra is a self-sufficient ecosystem composed of several layers of natural sand and substrate, as well as Danish ball moss and a combination of different phytonia variants. Measures: 26.5 x 8 cm. Weight: approximately 1.5 kg. CAUTIONS LIGHT: Ecosystems should receive as much indirect light as possible. Avoiding direct exposure to the sun, which heats the product too much and can burn the plants. We recommend placing the terrarium in a well-lit room or near a window, but always avoiding direct light. WATER: Each ecosystem has its own water cycle, which is reused indefinitely, moisture being lost very little by little through the cork, so we recommend a light irrigation of about 5 ml once a month, although ecosystems take about 4 months to dry if left unattended, so don't worry and just enjoy your mini ecosystem.