Which species of algae live up to 200 meters deep in the ocean?

Certain species of red algae, particularly those in the Rhodophyta phylum, can thrive at depths of up to 200 meters in the ocean. These algae contain pigments like phycoerythrin, which allow them to photosynthesize effectively in low-light conditions found at greater depths. Additionally, some brown algae, such as certain kelps, can also inhabit deeper waters, but red algae are more commonly associated with these depths.