
AI-generated image
Briareum sp.
Soft coral related to Green Star Polyps. Green polyps emerge from purple encrusting mat. Extremely hardy and fast-growing, spreading aggressively over rock and walls.
Briareum (family Briareidae) is an octocoral (soft coral) distributed across tropical reefs of the Indo-Pacific and Caribbean, closely related to star polyps. Star-shaped polyps bearing eight feathery tentacles grow densely over a spreading mat of stolons, swaying attractively in the current. Colors include browns, greens, and creams, with some specimens fluorescing under UV light. It is very easy to keep, tolerating a wide range of light and flow as a hardy soft coral. It grows vigorously and will overgrow live rock if left unchecked, so trim periodically to control spread. Fragging is as simple as cutting sections of stolon, making it a popular beginner species. Give it room since it can spread onto and contact neighboring corals.
Source: Wikipedia (CC BY-SA 4.0)
The Briareum (Green Star Polyp Relative) lives 10+ years.
The ideal temperature for the Briareum (Green Star Polyp Relative) is 24〜28℃.
Origin
tropical reefs of the Indo-Pacific and Caribbean
Lifespan
10+ years
Size
Encrusting — spreads indefinitely
Temperature
24〜28℃
Sources: AlgaeBarn: SPS/LPS/soft care / AlgaeBarn: Water Parameters 101
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Octocorallia (Briareum, Briareidae = closely related to star polyps). Does not fall under CITES-listed families (Helioporidae/Tubiporidae/Coralliidae) → not listed in Appendices. Japanese law also not applicable.
Sources: DOC NZ / CITES-listed corals (Briareidae family not included)
Regulations may change. Always verify the latest information with the relevant authorities.
Find listings for this species
Photosynthesis + liquid food
Adapts to low through high light. Very hardy
Tolerates weak to strong flow
Spreads naturally without intervention. Cut to control
Extremely aggressive grower. Must manage to prevent smothering other corals
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Briareum (Green Star Polyp Relative) is 24〜28℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Briareum (Green Star Polyp Relative) is 10+ years. With proper care and nutrition, they can live a long and healthy life.
Briareum (Green Star Polyp Relative) feeds on: Photosynthesis + liquid food. Aim for a balanced diet with appropriate feeding frequency.
The price of Briareum (Green Star Polyp Relative) varies significantly depending on variety, size, and individual quality. Check our market price page for the latest pricing information.
Last updated: June 23, 2026