I don't know yet... I have Taiwan, Singapore, Xmas, mini Xmas, fissidens fontanus, fissidens US mini, Flame, Wiror moss (Fontinalis sp. 'japan'), Crescend Moss (Drepanocladus aduncus) and Stringy moss. So it's hard to choose one! :lol:
But I'm thinking fissidens US mini or mini Xmas!