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Green Star Polyp
BeginnerA hardy soft coral with green star-shaped polyps on a mat. Beautiful fluorescent green.
Difficulty
Beginner
Temperature
24〜27℃
Lifespan
Several years+
Size
Mat-like
Diet
Photosynthesis
About
Green star polyps (Briareum spp., family Briareidae), commonly abbreviated GSP, are soft corals found throughout Indo-Pacific and Caribbean tropical reefs. Their characteristic purple-red encrusting mat (stolon) supports dense colonies of star-shaped polyps, each bearing eight slender green pinnules that fluoresce brilliantly under actinic illumination. GSP is extraordinarily adaptable, tolerating a wide range of lighting (50–300 PAR) and flow conditions, making it one of the most beginner-friendly corals available. Standard reef parameters (24–27°C, KH 8–11) are sufficient. Their aggressive growth is a double-edged quality: left untrimmed, stolon mats can blanket live rock entirely, smothering neighboring corals on contact. Regular pruning and careful placement away from other coral species are therefore essential. Propagation by cutting stolon pieces is effortless, and frags are among the most widely traded in the hobby.
Basic Info
Origin
tropical coral reefs of the Indo-Pacific and Caribbean
Lifespan
Several years+
Size
Mat-like
Temperature
24〜27℃
Diet
Photosynthesis
Care Guide
Lighting
Adapts to wide range of light
Flow
Medium flow opens all polyps
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.
Regulations & Conservation Status
Not CITES-listed
八放サンゴ(Pachyclavularia/Briareum, Briareidae)=グリーンスターポリプ。CITES 非掲載。
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.
Green Star Polyp Listings
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