Acropora humilis | M

Acropora humilis is a striking small polyp stony (SPS) coral known for its sturdy, branching growth and attractive colouration. This medium-sized specimen is perfect for marine aquarium enthusiasts seeking to add dynamic structure and vibrant life to their reef tanks.

Lighting Requirements: Acropora humilis thrives under strong, high-intensity lighting such as metal halide, T5, or high-output LED systems. Providing a PAR range of approximately 250-400 µmol/m²/s will support healthy growth and vivid colours.

Water Flow: Moderate to high water flow is essential to prevent detritus accumulation and to ensure optimal gas exchange. Aim for turbulent, indirect flow rather than direct blasts to avoid tissue damage.

Placement: Position this coral in the upper to middle regions of the aquarium where lighting and flow conditions are ideal. Ensure adequate spacing from neighbouring corals to reduce aggression and allow for growth.

Care Level: This species is recommended for intermediate to advanced aquarists due to its specific environmental needs and sensitivity to water quality fluctuations.

Diet: While primarily photosynthetic via its symbiotic zooxanthellae, Acropora humilis benefits from supplemental feeding with coral foods such as phytoplankton, zooplankton, or specialised SPS coral feeds.

Compatibility and Reef Safety: Acropora humilis is reef safe with adequate spacing. It may exhibit aggressive behaviour through sweeper tentacles, so maintain sufficient distance from other corals.

Origin: Not Provided.

Maximum Size: Medium-sized colonies typically reach up to 15-20 cm in height under optimal conditions.

Maintaining stable water parameters—calcium (400-450 ppm), alkalinity (8-12 dKH), magnesium (1250-1350 ppm), and low nutrients—is critical for the health of Acropora humilis.