Think about your house and where you think plants will do better, with some sunlight: usually it will be somewhere close to an opening, a glass door or a window, where the plant can receive some direct and indirect sunlight.
Those are the places where you should never have your terrarium.
Moss Terrariums love basements, offices, bookcases and corners without natural light. Just provide them with some lamp light, and you will have a beautiful moss Terrarium for many years.
