Common name: Haeckel's Anemone

General information

Haeckel's Mushroom Coral, scientifically known as Actinostephanus haeckeli, is a species of large polyp stony coral (LPS) that is appreciated in the reefkeeping hobby for its unique appearance and ease of care. This coral is characterized by its fleshy polyps and vibrant colors, which can range from deep purples to bright greens, often with contrasting mouths.

Care

Actinostephanus haeckeli is a hardy coral that can thrive in a range of lighting conditions, from moderate to high intensity. It prefers gentle to moderate water flow to mimic its natural reef environment. Feeding is not strictly necessary as it contains symbiotic algae known as zooxanthellae that provide most of its nutritional needs through photosynthesis. However, supplemental feeding with fine particulate foods can promote growth and enhance coloration.

Symbiosis

While not known for a specific symbiotic relationship like clownfish and anemones, Haeckel's Mushroom Coral benefits from the general mutualistic relationship with zooxanthellae, which are crucial for its survival and growth.

Habitat

Actinostephanus haeckeli is found in the Indo-Pacific region, typically in shallow reef environments where it can receive ample sunlight for its symbiotic algae to perform photosynthesis. It is often found on reef slopes and in lagoons, usually at depths where light penetration is optimal for its zooxanthellae.