The Euphyllia glabrescens, commonly referred to as the Reverse Holy Grail, is a medium-sized large polyp stony (LPS) coral prized for its elegant, elongated tentacles and striking appearance. This coral adds dynamic movement and vibrant colour to mature reef tanks, making it a sought-after specimen for marine aquarium enthusiasts.
Lighting Requirements: Moderate to high lighting is recommended to support healthy growth and vibrant coloration. LED or T5 lighting systems that provide a balanced spectrum work well.
Water Flow: Moderate, indirect water flow is ideal. Strong currents can damage the delicate tentacles, while too little flow may lead to detritus accumulation.
Placement: Position this coral in the middle to lower regions of the tank, ensuring it has enough space to expand its tentacles without touching neighbouring corals. Adequate spacing minimises aggression and potential tissue damage.
Care Level: Intermediate. This coral requires stable water parameters and attentive husbandry to thrive.
Diet: Primarily photosynthetic via symbiotic zooxanthellae, but benefits from occasional feeding of meaty foods such as brine shrimp or specialised coral foods to enhance growth and colour.
Reef Compatibility: Yes, with adequate spacing. Euphyllia glabrescens can exhibit sweeper tentacles that may sting nearby corals, so maintain a respectful distance.
Minimum Tank Size: 90 litres (approximately 20 gallons) to provide sufficient space and stable water conditions.
Origin: Not Provided.
Maximum Size: Typically reaches up to 30 cm (12 inches) in diameter under optimal conditions.
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