Common name: Acropora aculeus

General information

Acropora aculeus is a species of small polyp stony (SPS) coral commonly found in the reefkeeping hobby. Known for its intricate branching and vibrant colors, it is a favorite among aquarists who aim to create dynamic and diverse reefscapes. This coral exhibits a range of colors, typically from pale green to deep purple, and has a distinctive needle-like branch tips, which is where it gets its name 'aculeus' meaning 'needle' in Latin.

Care

Acropora aculeus requires stable water conditions and intense lighting to thrive in captivity. It is a high-light species that benefits from strong water flow to deliver nutrients and remove waste. Calcium, alkalinity, and magnesium levels should be maintained within optimal ranges for coral health. Target feeding is not necessary as this coral captures microscopic food particles from the water column, but it can benefit from the occasional feeding of fine coral foods.

Symbiosis

Like many Acropora species, A. aculeus may host a variety of symbiotic organisms, including certain species of commensal crabs and shrimps that protect the coral from predators and parasites. Additionally, it harbors zooxanthellae, symbiotic algae that live within its tissues and provide the coral with energy through photosynthesis.

Habitat

Acropora aculeus is found in the Indo-Pacific region, typically in shallow, sunlit reef environments where it forms part of the complex reef structure. It is often seen in lagoons and on reef slopes, contributing to the biodiversity and structural complexity of the reef ecosystem.