Acropora aculeus is a medium-sized Small Polyp Stony (SPS) coral known for its intricate branching morphology and vibrant colours, making it a popular choice among experienced marine aquarists. This species thrives under stable, high-quality reef conditions and is best suited to those with some SPS coral husbandry experience.
Lighting Requirements: Acropora aculeus requires strong, intense lighting typically provided by LED, T5, or metal halide systems to support its photosynthetic needs. Aim for a PAR range of 250-400 µmol/m²/s to maintain healthy growth and vibrant coloration.
Water Flow: Moderate to strong, turbulent water flow is essential to prevent detritus accumulation and to facilitate gas exchange and nutrient delivery. Position the coral where it can receive indirect but vigorous water movement.
Placement: Place Acropora aculeus in the upper to mid-level regions of the aquarium to ensure adequate light exposure and water circulation. Maintain sufficient spacing from neighbouring corals to avoid aggressive interactions and allow for growth.
Care Level: This coral is best suited for intermediate to advanced hobbyists due to its sensitivity to water quality fluctuations. Consistent water parameters and regular monitoring are critical for success.
Water Parameters: Maintain stable conditions with temperature between 24-27°C, salinity at 1.025-1.026 SG, calcium 400-450 ppm, alkalinity 8-12 dKH, and magnesium 1250-1350 ppm.
Diet: Primarily photosynthetic via symbiotic zooxanthellae, but will benefit from supplemental feeding of fine particulate foods such as phytoplankton or specialised coral foods.
Reef Compatibility: Yes, with adequate spacing to prevent coral warfare and ensure healthy growth.
Origin: Not Provided
Maximum Size: Typically grows up to 30 cm in branching spread under optimal conditions.



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