This featherlike Fissidens-moss with tight deep green leaves comes from North America. It grows relatively slowly and requires much more light than other mosses. Suitable for binding roots and stones both vertically and horizontally in the aquarium. The plant is a delicate dark green aquatic moss that commonly grows on wood and rocks found in rivers and lakes to form round-like cushions. It is a submerged plant known to anchor itself on stable objects by use of brownish rhizoids. Its growth comprises the formation of new leaves along the stem. While the stem is the main attachment of leaves, there are occasional branches on which leaves grow in alternating positions. The stem grows to a maximum height of 13 cm. To distinguish the moss from other plants, the physical structure of the leaf is essential. Young leaves are light green, but this changes to olive green and eventually black with age.
