Quick Stats
Care Level: Easy
Temperament: Peaceful
Color Form: Deep Red to Burgundy
Diet: Photosynthetic (absorbs nitrates and phosphates)
Reef Compatible: Herbivores eat it
Water Conditions: 72–78°F / 22–26°C, pH 8.0–8.4, dKH 8–12, sg 1.023–1.026
Max. Size: ~5–10 cm (2–4")
Origin: Tropical & Subtropical Oceans
Family: Rhodymeniaceae
Minimum Tank Size: 20 gallons
Overview
Botryocladia botryoides, commonly known as Red Grape Macroalgae, is a highly decorative red macroalgae recognized for its round, bubble-like vesicles that resemble clusters of grapes. Its deep red coloration adds strong visual contrast to reef aquariums and refugiums, making it one of the most popular ornamental macroalgae species.
This species grows best under moderate lighting and gentle to moderate water flow, where it helps export excess nutrients by consuming nitrates and phosphates. Its slow to moderate growth rate makes it easy to manage, while its dense structure provides shelter for microfauna. Reef-safe and visually striking, Botryocladia botryoides is an excellent choice for aquarists seeking both beauty and function in a macroalgae display.