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Galaxea Coral
Galaxea fascicularis
Family: Oculinidae
📍 Indo-Pacific Reef Systems
Galaxea is a large-polyp stony coral with star-shaped polyps that extend long sweeper tentacles at night, capable of stinging corals several centimetres away. It is a fast grower under good conditions but requires significant space between it and neighbours.
Keeping this species
- flow
- Moderate
- light
- Medium to high
- feeding
- Photosynthetic; target feeding enhances growth
- tank size
- 50 gallons minimum
- temperament
- Aggressive sweeper tentacles – needs buffer zone
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Tips from the community 💡
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Water it likes
- ph
- 8.1–8.3
- calcium
- 400–450 ppm
- salinity
- 1.025–1.026 SG
- alkalinity
- 8–11 dKH
- temperature
- 75–81°F (24–27°C)
Natural Habitat Temperature
79°F — 81°F seasonal range · (Jan low, Feb high)