How To Care For Moss In A Terrarium. If the glass container you have chosen as the recommended link above it an open air terrarium. Open terrariums are popular and for good reason.
Terrariums whether created with succulents cacti or tropical plants are like tiny universes. Every now and again spray your moss with a light mist. High humidity within closed environments can lead to the growth of bacteria as well as plant fungal issues.
Give the moss a good misting with water.
Double check for puffy stems that signal underlying root rot. Give the moss a good misting with water. Moss needs to be kept out of direct sunlight in a nice damp area and away from strong winds draughts or radiators. Finally put your live moss on top of the soil patting it down firmly.