The MiniTerra is a self-sufficient ecosystem composed of a combination of natural sand, Danish ball moss and selaginella as its centerpiece. Measures 7 x 3 cm. Weight approx. 35 g. CARE 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 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, with moisture being lost little by little through the cork, so we recommend a light irrigation of about 5 ml once a month, although it takes about 4 months for ecosystems to dry out if they are neglected, so don't worry and just enjoy your mini ecosystem.