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Green Hammer Coral

Species photo: portioid, CC BY 4.0, via iNaturalist

Corals · LPS corals

Green Hammer Coral

Fimbriaphyllia ancora

  • Moderate care
  • Reef safe with caution
  • Aquacultured / captive-bred

$89.99

Anchor-shaped tentacle tips in glowing green. A classic Euphyllia.

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From our species guide

Care at a glance

  • Care levelModerate
  • Reef safeWith caution
  • TemperamentAggressiveLong sweeper tentacles sting nearby corals
  • Temperature75–78 °F
  • Salinity1.024–1.026 SG
  • pH8.1–8.4
  • Min tank30 gallons
  • FeedingMostly from light, plus mysis / fortified brine shrimp and micro-plankton
  • Colony size31.5 in (80 cm)

In plain words: A hammer coral has lots of fat, soft tentacles. The tip of each one is shaped like a tiny hammer or a boat anchor. Under the soft parts is a hard skeleton that the coral builds itself. Some hammers grow like a curvy wall.

Full species guide → See its family tree

About the Green Hammer Coral

Hammer corals have tentacles tipped with little anchor or hammer shapes. Their gentle movement and bright color make them a reef staple. Keep them a few inches from other corals.