Euphyllia glabrescens, commonly known as the Holy Grail coral, is a spectacular large polyp stony (LPS) coral prized for its long, flowing tentacles and striking appearance. This small specimen is perfect for marine aquarists looking to add dynamic movement and vibrant colour to their reef aquarium.
Lighting Requirements: Moderate to high lighting is recommended to maintain optimal health and vibrant coloration. LED, T5, or metal halide lighting systems are suitable.
Water Flow: Moderate, indirect water flow is ideal to gently sway the tentacles without causing damage or excessive retraction.
Placement: Position the coral in a location with adequate space to prevent contact with neighbouring corals, as Euphyllia species possess sweeper tentacles that can sting nearby corals. Mid to lower areas of the tank are preferred.
Care Level: Intermediate. Requires stable water parameters and regular monitoring to thrive.
Diet: Primarily photosynthetic via symbiotic zooxanthellae but will benefit from occasional feeding of meaty foods such as brine shrimp or specialised coral foods.
Reef Compatibility: Yes, with adequate spacing to avoid aggression towards other corals.
Minimum Tank Size: 90 litres (approximately 24 gallons) to provide sufficient space for growth and water quality stability.
Origin: Not Provided.
Maximum Size: Colonies can grow up to 30 cm (12 inches) in diameter under optimal conditions.



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