The Euphyllia cristata (Green) Ultra XXL is a spectacular large polyp stony (LPS) coral prized for its vibrant green tentacles and unique, crested morphology. This extra extra large specimen makes a striking focal point in mature reef aquariums.
Care Level: Moderate to advanced. This coral requires stable water parameters and attentive husbandry to thrive.
Lighting: Moderate lighting is ideal, such as T5 fluorescents or LED systems providing 100-150 PAR. Avoid intense direct light to prevent bleaching.
Water Flow: Moderate, indirect water movement is best to gently sway the tentacles without causing tissue damage.
Placement: Position this coral in a lower to mid-level area of the tank where it can expand fully without touching neighbouring corals. Allow ample space to prevent aggression and stinging.
Diet: Primarily photosynthetic via symbiotic zooxanthellae, but benefits from occasional feeding of meaty foods such as brine shrimp, mysis shrimp, or specialised coral foods.
Reef Compatibility: Yes, with adequate spacing. Euphyllia cristata has sweeper tentacles that can sting nearby corals, so maintain a minimum of 10-15cm clearance.
Origin: Not Provided.
Maximum Size: This XXL specimen can reach up to 30cm in diameter under optimal conditions.
Minimum Tank Size: Recommended for tanks 120 litres or larger to accommodate its size and water quality needs.
Regular water changes, stable calcium, alkalinity, and magnesium levels are essential for healthy skeletal growth. Monitor for pests and maintain excellent water quality to ensure longevity.
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