Star Moss

I have special liking for aquatic plants due to their vast varieties, more so on those "exotic" species. Today I happened to come across a special moss - star moss. I have many successful experiences cultivating java, christmas and spiky moss. This one is rather new to me. They were hardly discussed in many forums and its availability seems rare in the past that one may have to order from overseas. Thus I thought they might be expensive. However I saw its price to be on par with many common mosses in the market and immediately grabbed it when I chanced upon it at LFS today. Some people suggested that Star Moss is an emerged plant that requires a very moisted ground to grow, however it may not survive submerged. Personally, I have not tried this in my tank and will watch its result, hopefully, positively since I believed this purchased piece has already been grown under water. Anyway, it really looks nice like many green stars covering a lava rock seen here.