Brown2

• Brown macroalgae are sometimes seasonally available in the aquarium trade and under suitable conditions, will grow quite prolifically. (wikipedia.org)
• Turtle grass, Thalassia hemprichii and Thalassia testudinum Manatee grass, Syringodium filiforme List of freshwater aquarium plant species List of brackish aquarium plant species List of marine aquarium fish species List of marine aquarium invertebrate species Marine aquarium Reef aquarium : BROWN MACROALGAE (PHAEOPHYTA) [1]. (wikipedia.org)