Common name: Mushroom Coral

General information

Mushroom Corals, scientifically known as Actinodiscus nummiformis, are popular in the reefkeeping hobby for their ease of care and wide range of vibrant colors. They are often referred to as 'Disc Anemones' or 'False Corals' due to their anemone-like appearance, although they are true corals. These corals belong to the family Discosomatidae and are known for their flat, disc-like shape that resembles a mushroom cap.

Care

Mushroom Corals are hardy and adaptable, making them suitable for beginners. They thrive in a variety of lighting conditions, from low to moderate, and can tolerate a range of water flow, although they prefer gentle currents. They are not demanding in terms of water quality, but stable conditions are always beneficial. Mushroom Corals can reproduce asexually through a process called budding, where new corals form from the base of the parent.

Symbiosis

While not involved in the classic clownfish-anemone symbiosis, Mushroom Corals can provide a microhabitat for small reef creatures. They may occasionally host small crustaceans or fish seeking refuge among their fleshy polyps.

Habitat

Mushroom Corals are found in shallow reef environments, often in crevices or under overhangs where they can avoid intense direct sunlight. They are distributed across the Indo-Pacific region, contributing to the biodiversity and complexity of these ecosystems.