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Sun Coral

Tubastraea sp.Lesson, 1830Genus

Vivid orange non-photosynthetic coral. Grown entirely through feeding. Stunning full polyp extension at night.

Sun Coral (Tubastraea sp.)
© Franklin Samir DatteinCC BY 2.0Source

Names & Synonyms

  • CommonSun Coral
  • Commonサンゴイソギンチャク(サンコーラル)
  • SynonymAgatheliopsis
  • SynonymAstropsammia
  • SynonymAustralopsammia
  • SynonymCoenopsammia
  • SynonymPachypsammia

Overview

Sun coral (genus Tubastraea, family Dendrophylliidae) is an azooxanthellate cup coral containing no symbiotic algae and therefore deriving all nutrition from active predation rather than photosynthesis. Its brilliant orange, yellow, or black polyps open like flowers to capture plankton, making it one of the most visually striking corals for shaded tank positions where photosynthetic corals cannot thrive. Native to reef walls and slopes of the Indo-Pacific, it often colonizes overhangs and cave ceilings. Successful husbandry demands frequent target feeding (three to five times weekly) with brine shrimp, mysis, or plankton, pausing flow to allow polyp extension during meals.

Care Specifications

TypeLPS
Temperature24〜27℃
Specific gravity1.023〜1.025
Salinity33〜35 ppt
KH (carbonate hardness)8〜12 dKH
Calcium (Ca)400〜450 mg/L
Magnesium (Mg)1280〜1350 mg/L
LightingLow
Water flowMedium
PlacementAny

Care Points

  • LightingNot needed (non-photosynthetic)
  • FlowModerate
  • FeedingDaily or every other day feeding required. Labor-intensive
  • PlacementShaded areas or under overhangs
  • NotesNeglecting feeding causes decline and death

Regulatory & Conservation

CITES:
Appendix II
Notes:
イシサンゴ目(Tubastraea, Dendrophylliidae)。和名サンゴイソギンチャクは俗称だが学名はイシサンゴ目=CITES 附属書II。

Sources

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