I have bad luck with ALL moss so if you get something working let me know how you did it.....
When I try it either dies or spawns fungus like crazy....
I have had times were I had moss last months and other times were it lasts a few weeks. I don't remember the name of it, but there is another plant that looks just like moss. I can't be positive if I am using moss or that other similar name that I can't even spell.