Common name: Finger coral

General information

Acropora humilis, commonly known as Staghorn Coral, is a small polyp stony (SPS) coral widely appreciated in the reefkeeping hobby for its robustness and variety of colors. It is characterized by its branching growth form, which resembles the antlers of a stag, hence the name. This coral can exhibit a range of colors from pale cream to deep green, often with vibrant tips.

Care

Staghorn Coral is considered a moderately difficult species to keep due to its high light and flow requirements. It thrives under intense aquarium lighting and strong water movement, which helps to keep the coral free from detritus and provides the necessary nutrients. Stable water parameters and calcium levels are crucial for the growth of its calcium carbonate skeleton.

Symbiosis

Like many corals, Acropora humilis hosts zooxanthellae, symbiotic algae that live within its tissues. These algae provide the coral with essential nutrients through photosynthesis, while the coral provides protection and access to light. This symbiotic relationship is vital for the health and growth of the coral.

Habitat

Acropora humilis is found in shallow reef environments, typically in the back reef and fore reef zones. It prefers well-lit areas with strong water movement. Its natural range extends across the Indo-Pacific region, from the Red Sea to the central Pacific Ocean.