Highlights

• Common Names: Open Brain Coral, Trachy, Wellsophyllia (trade name)

• Morph: Twin (two mouths/polyps on a single skeleton), Flat Skeleton (less dome-shaped, more plate-like growth form)

• Origin: Collected from Bali, Indonesia – a hotspot for unique morphs.

• Appearance:

  • Large fleshy polyp that expands over a flat skeletal base.

  • Twin morph shows two distinct oral discs sharing one skeleton.

  • Colors vary widely: metallic greens, reds, blues, or rainbow blends.

• Care Level: Moderate.

• Temperament: Peaceful, reef-safe.

• Water Conditions:

  • Temp: 24–27 °C

  • Salinity: 1.024–1.026

  • pH: 8.0–8.4

  • dKH: 8–11

• Lighting: Moderate; too much light can bleach tissue.

• Flow: Gentle to moderate; strong flow can tear fleshy tissue.

• Placement: On sandy substrate or flat rock, away from aggressive corals.

• Feeding: Benefits from supplemental feeding (mysis shrimp, reef roids, plankton).