Symphyllia (Australophyllia) wilsoni (Ultra) Small is a visually striking large polyp stony (LPS) coral prized for its vibrant colours and distinctive fleshy polyps. This Ultra variant displays enhanced pigmentation, making it a prized specimen for marine aquarium enthusiasts.
Care Level: Moderate to Advanced. This coral requires stable water parameters and attentive husbandry to thrive.
Lighting Requirements: Moderate lighting is recommended. LED or T5 lighting systems providing a PAR range of 100-200 µmol/m²/s are ideal to maintain vibrant colours without causing bleaching.
Water Flow: Moderate, indirect water flow is best to gently move the polyps and prevent detritus accumulation while avoiding tissue damage.
Placement: Place on the substrate or lower to mid-level rockwork with adequate spacing from neighbouring corals to prevent aggressive interactions. Allow at least 5-7 cm clearance to accommodate polyp extension.
Diet: Primarily photosynthetic via symbiotic zooxanthellae, but benefits from supplemental feeding of meaty foods such as mysis shrimp, brine shrimp, or specialised coral foods 1-2 times per week.
Temperament: Semi-aggressive. It can extend sweeper tentacles at night, so maintain spacing from other corals to avoid stinging.
Reef Safe: Yes, with adequate spacing from other corals to prevent aggression.
Minimum Tank Size: 90 litres (approximately 20 gallons) to provide stable water conditions and space for growth.
Origin: Not Provided.
Maximum Size: Typically grows up to 15 cm in diameter under optimal conditions.
Regular water testing and maintenance of stable parameters (temperature 24-26°C, salinity 1.025, pH 8.1-8.4) are essential for long-term health. Avoid sudden changes in lighting or water flow to reduce stress.
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