Acropora hyacinthus (Ultra) is a spectacular small polyp stony (SPS) coral known for its intricate branching and vivid coloration, making it a prized addition to advanced reef aquariums. This variant, often referred to as ‘Ultra’ due to its intense colouration, demands stable water parameters and optimal husbandry to thrive.
Lighting Requirements: This coral requires strong, high-intensity lighting such as metal halide, T5, or high-output LED systems to support its photosynthetic needs.
Water Flow: Moderate to high water flow is essential to ensure proper gas exchange and to prevent detritus accumulation on the coral’s surface.
Placement: Position Acropora hyacinthus (Ultra) higher in the aquarium to maximise light exposure. Ensure adequate spacing from neighbouring corals to prevent aggressive interactions, as this species can be sensitive to encroachment.
Care Level: Recommended for experienced aquarists due to its sensitivity to water quality fluctuations and specific husbandry requirements.
Additional Notes: Maintain stable water parameters with regular testing and water changes. Supplementation with calcium, alkalinity, and magnesium is advised to support skeletal growth. Avoid sudden changes in lighting or flow to reduce stress.

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