Genus
Common name: Green Hair Algae
Scientific name: Eulalia
Eulalia is a genus of filamentous green algae commonly known as Green Hair Algae in the reefkeeping hobby. It is often found in marine aquariums where it can grow rapidly under high nutrients and adequate lighting conditions. While it can be aesthetically displeasing and may overgrow other organisms, some hobbyists cultivate it in refugiums to absorb excess nutrients and to serve as a food source for herbivorous fish and invertebrates.