The Euphyllia cristata (Joker) is a spectacular large polyp stony (LPS) coral prized for its unique, flowing tentacles and vibrant colours. This Extra Large specimen offers a dramatic focal point in any mature marine aquarium.
Lighting: Moderate to high lighting is recommended, ideally using LED or T5 systems that provide a balanced spectrum. Avoid sudden changes in light intensity to prevent stress.
Water Flow: Moderate, indirect water flow is ideal to gently sway the tentacles without causing damage. Strong direct currents can cause tissue recession.
Placement: Position this coral in a mid to lower section of the tank where it can expand fully without touching neighbouring corals. Adequate spacing is essential to prevent aggression and stinging.
Care Level: Moderate. Suitable for aquarists with some experience in LPS coral husbandry. Stable water parameters and regular feeding will promote healthy growth.
Diet: Primarily photosynthetic via symbiotic zooxanthellae, but benefits from supplemental feeding of meaty foods such as mysis shrimp or specialised coral foods 1-2 times per week.
Reef Compatibility: Yes, with adequate spacing. This coral can exhibit aggressive behaviour through sweeper tentacles, so maintain distance from sensitive neighbours.
Additional Notes: Regular monitoring of water quality, including calcium, alkalinity, and magnesium, is important to support skeletal growth. Avoid placing near fast-growing or highly aggressive corals.
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