Rigid and rough textured (hair-like) filaments (thallus) appearing curved and often entangled in a mass. Singular unbranched filaments are the same width throughout their length. Unattached. Medium to dark green. Filaments are long.
This widespread alga is used in the aquarium trade as it removes nitrates from the water and provides habitat for small invertebrates. It has replaced Caulerpa species as the preferred aquarium plant in some locations because it is less likely to reproduce in aquaria and risk spreading as a marine pest like Caulerpa species do.
Intertidal near low tide level and shallow subtidal, sheltered waters, to depth of 3 m.
Photosynthetic - sunlight
Recorded in Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed