Can red algae live in fresh water?

Red algae primarily thrive in marine environments, but some species can be found in freshwater habitats. These freshwater red algae are generally less common and may inhabit specific niches such as streams, ponds, or wetlands. They are adapted to lower salinity levels compared to their marine counterparts. Overall, while most red algae are adapted to saltwater, a few have successfully adapted to freshwater ecosystems.