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Green Star Polyps (Briareum violaceum) Deal of the day

Corals · Soft corals

Green Star Polyps

Briareum violaceum

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Neon-green polyps that sway in the current over a purple mat. One of the easiest corals to grow.

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From our species guide

Care at a glance

  • Care levelEasy
  • Reef safeYes
  • TemperamentPeacefulPeaceful, but grows over neighbors
  • Temperature74–80 °F
  • Salinity1.023–1.026 SG
  • pH8.1–8.4
  • Min tank10 gallons
  • FeedingMostly from light, plus micro-plankton and fine particulate foods

In plain words: Green star polyps look like a purple carpet covered in tiny glowing green stars. Each star is a polyp: a little animal with eight feathery arms. Hundreds of polyps share one stretchy purple skin, so the whole mat is really one big family.

Full species guide → See its family tree

About the Green Star Polyps

Green star polyps (GSP) form a purple mat covered in glowing green polyps that wave in the flow. They grow fast and tolerate a wide range of conditions, so they are a favorite first coral.

They spread quickly, so many reefers grow them on an isolated rock or the back glass.