Fissidens fontanus (Us Fissidens) originates from USA. It is a very nice fissidens species and it is truely aquatic. The best part is that the rhizoids of Fissidens fontanus will cling on readily to wood or stones after a while, and so doesn't require frequent re-tying of the moss. Coupled with the fact that this fissidens is small in size and not very fast growing, one can see the potential of using Fissidens fontanus to cover the driftwood and Stones and create a natural aquarium landacape. Once the fissidens settled in and take 'root', it is virtually maintenance free.