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Briareum (Green Star Polyp Relative)
BeginnerBriareum 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.
Difficulty
Beginner
Temperature
24〜28℃
Lifespan
10+ years
Size
Encrusting — spreads indefinitely
Diet
Photosynthesis + liquid food
About
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)
Basic Info
Origin
tropical reefs of the Indo-Pacific and Caribbean
Lifespan
10+ years
Size
Encrusting — spreads indefinitely
Temperature
24〜28℃
Diet
Photosynthesis + liquid food
Care Guide
Lighting
Adapts to low through high light. Very hardy
Flow
Tolerates weak to strong flow
Propagation
Spreads naturally without intervention. Cut to control
Notes
Extremely aggressive grower. Must manage to prevent smothering other corals
Soft coralBeginner-friendlyUltra-hardyEncrusting
Briareum (Green Star Polyp Relative) FAQ
QHow difficult is it to keep Briareum (Green Star Polyp Relative)?
A
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
QWhat is the ideal temperature for Briareum (Green Star Polyp Relative)?
A
The ideal temperature for Briareum (Green Star Polyp Relative) is 24〜28℃. Avoid sudden temperature changes and maintain a stable environment.
QWhat is the lifespan of Briareum (Green Star Polyp Relative)?
A
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.
QHow large does Briareum (Green Star Polyp Relative) get?
A
Briareum (Green Star Polyp Relative) typically reaches Encrusting — spreads indefinitely as an adult. Size may vary depending on care conditions and individual genetics.
QWhat should I feed Briareum (Green Star Polyp Relative)?
A
Briareum (Green Star Polyp Relative) feeds on: Photosynthesis + liquid food. Aim for a balanced diet with appropriate feeding frequency.
QWhat is the typical price for Briareum (Green Star Polyp Relative)?
A
The price of Briareum (Green Star Polyp Relative) varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: June 23, 2026
Care Specifications
- Carbonate (KH)
- 8–12 dKH
- Water Temp.
- 24–27℃
- Specific Gravity
- 1.023–1.025
- Salinity
- 33–35 ppt
Soft coralLight: Medium (PAR 50-150)Flow: MediumPlacement: Flexible
Sources: AlgaeBarn: SPS/LPS/soft care / AlgaeBarn: Water Parameters 101
References & Sources
Edited & verified by: br-choku editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Taxonomy & Authority
Regulations & Conservation Status
Not CITES-listed
八放サンゴ(Briareum, Briareidae=スターポリプ近縁)。CITES 掲載科(Helioporidae/Tubiporidae/Coralliidae)に非該当→附属書非掲載。日本法も非該当。
Sources: DOC NZ / CITES-listed corals(掲載科に Briareidae 含まず)
Regulations may change. Always verify the latest information with the relevant authorities.
Related Species
Briareum (Green Star Polyp Relative) Listings
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