If you are purchasing a Sanctuary M an insert is already included. Select this product if you would like an additional insert to experiment with. Choose from Moss insert or Plant insert. Create your arrangement in the insert to keep your base and top clean.
Select Moss Insert if you are displaying moss and Plant if you require more room for soil for your small terrarium plants.
*Please keep in mind that a Plant Insert used in Sanctuary M Rainforest creates a very humid environment. Please ensure you have selected terrarium plants that enjoy this climate.