Fern moss makes a beautiful addition to any terrarium. This dried moss instantly revives after being watered. Mist once a day with purified or distilled water and keep in indirect light. As this is a natural product, no two bags are alike. Amount of moss will vary, most bags have 1-2 pieces though some have 3-4. Some bags have a small amount of lichen or other types of moss. This moss is dried to keep it preserved and to drive out pests then frozen for one week after bagging to further eliminate any potential pests.