This featherlike Fissidens-moss with tight deep green down comes from North America. It grows relatively slow and requires much more light than other mosses. Suitable for attaching to wood pieces or rocks both vertically and horizontally in the aquarium. 

Fissidens fontanus is gorgeous, feathery aquatic moss that will add brightness and dimension to any planted tank. A newly discovered moss that hails from the USA, this plant is adaptable and virtually maintenance-free once it has taken root. While F. fontanus can survive in a variety of conditions, it prefers a lower temperature, around 77°F. Unlike other mosses, F. fontanus can be planted directly into the substrate, or will readily attach itself to an appropriate surface without the nuisance of frequent re-tying. This moss is a popular option for creating a natural look with rocks or driftwood.