Symphyllia
de Blainville, 1830Genus
An LPS coral with complex brain-like patterns. Vivid fluorescent green and red specimens are popular.

Names & Synonyms
- CommonSymphyllia
- Commonシンフィリア
- SynonymAustralomussa
- SynonymPalauphyllia
- SynonymParascolymia
- SynonymSymphillia
- SynonymSymphyllia
Overview
Symphyllia is a genus of large-polyp stony corals (family Lobophylliidae) forming massive brain-like colonies on Indo-Pacific reefs. Their deeply convoluted ridges and valleys can span 20–50 cm or more in diameter, displaying vivid fluorescence in green, red, orange, and purple. Moderate lighting (100–200 PAR) and gentle indirect flow are ideal; strong direct current damages the fleshy tissue. Stable water parameters (24–27°C, KH 8–10) are essential. Extended sweeper tentacles emerge nightly and aggressively sting neighboring corals, so a minimum 15 cm clearance from other specimens is advised. Weekly target feeding with brine shrimp or small pellets accelerates growth and enhances color. Fragging is straightforward using a band saw or chisel. Symphyllia's dramatic size and striking coloration make it a showpiece in large reef aquaria.
Care Specifications
| Type | LPS |
|---|---|
| Temperature | 24〜27℃ |
| Specific gravity | 1.023〜1.025 |
| Salinity | 33〜35 ppt |
| KH (carbonate hardness) | 8〜12 dKH |
| Calcium (Ca) | 400〜450 mg/L |
| Magnesium (Mg) | 1280〜1350 mg/L |
| Lighting | Medium |
| Water flow | Low |
| Placement | Bottom |
Care Points
- Lighting—Medium light level is optimal
- Flow—Low to medium flow
- Feeding—Large polyps actively catch food
- Notes—Fluorescent colors shine under blue light
Regulatory & Conservation
- CITES:
- Appendix II
- Notes:
- イシサンゴ目(Symphyllia, Lobophylliidae)。CITES 附属書II。
Sources
- AlgaeBarn: SPS/LPS care (PAR/flow)(careSpec)
- AlgaeBarn: Water Parameters 101(careSpec)
- DOC NZ / CITES-listed corals (Scleractinia spp. = App. II)(regulatory)
Related corals of the same type
AcanthastreaアカンサストレアlpsBeginnerAn LPS coral with metallic colors in large polyps. Australian specimens are popular as premium pieces.
Acan CoralアカンソフィリアlpsIntermediateAn LPS coral with rich colorful variations. Highly popular among collectors with many high-value specimens.
Acanthophyllia (Meat Coral)アカントフィリアlpsIntermediateLPS coral with single massive polyp. Vivid red, green, blue colors earn it the 'Meat Coral' nickname. Impressive when fleshy tissue inflates fully.
Acan LordアカンロードlpsIntermediateAn LPS coral with vivid multicolor patterns beautiful as jewels. Premium species popular among collectors.
AlveoporaアルベオポラlpsIntermediateAn LPS coral with long tentacles similar to Goniopora. Hardier and easier to keep than Goniopora.
War CoralウォーコーラルlpsBeginnerAn LPS coral with distinctive rugged appearance. Also called Favia, beautiful with fluorescent colors.Related care articles

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