Genus
Common name: Hydrolithon
Scientific name: Hydrolithon
Hydrolithon is a genus of non-geniculate coralline red algae, commonly found in reef environments. These encrusting algae play a crucial role in reef-building by cementing together various substrates, thus contributing to the structural integrity of coral reefs. They are also important in the formation of tropical reef flats. Hydrolithon species are characterized by their crustose growth form and can be beneficial in aquariums for their ability to outcompete nuisance algae and provide a natural appearance. They require stable conditions with moderate to high lighting and good water flow to thrive.