Description

Holy Grail Torch Coral (Euphyllia glabrescens) is one of the most sought-after and visually striking varieties of torch coral in the reef aquarium hobby.

🔥 Holy Grail Torch Coral – Description

Scientific Name: Euphyllia glabrescens
Common Name: Holy Grail Torch Coral
Type: Large Polyp Stony (LPS) Coral
Origin: Indo-Pacific (commonly from Australia or Indonesia)

🌈 Appearance:

• Tentacles: Long, flowing tentacles that wave gracefully in the current.
• Coloration: Extremely vibrant with neon or electric hues:
  • Tentacle Tips: Bright gold or yellow (sometimes with green undertones)
  • Stems/Base: Deep green, metallic blue, or sometimes dark purple
  • Overall Look: The contrast between the glowing gold tips and darker base gives it a “Holy Grail” glow that makes it stand out under both daylight and actinic (blue) lighting.

💡 Lighting & Flow:

• Lighting: Moderate to high (brings out its fluorescent colors)
• Flow: Moderate, enough to gently sway the tentacles without blasting them

🌊 Care Level:

• Difficulty: Moderate
• Aggressiveness: High – long sweeper tentacles can sting neighboring corals, so give it space
• Placement: Mid to lower areas of the tank with adequate space around it

🧪 Water Parameters:

• Temperature: 75–80°F (24–27°C)
• pH: 8.1–8.4
• Alkalinity: 8–12 dKH
• Calcium: 400–450 ppm
• Magnesium: 1250–1350 ppm
• Nitrates & Phosphates: Low but detectable levels (nutrient-rich without being dirty)

🌱 Feeding:

• While primarily photosynthetic (zooxanthellae), it will benefit from:
  • Target feeding of meaty foods like mysis shrimp or coral foods 1–2x per week