List of marine aquarium plant species

Aquatic plants are used to give the aquarium a natural appearance, oxygenate the water, and provide habitat for fish, especially fry (babies) and for invertebrates. Some aquarium fish and invertebrates also eat live plants. Hobby aquarists use aquatic plants for aquascaping.

Marine algae are also included in this list for convenience, despite the fact that many species are technically classified as protists, not plants.