The Mushroom Coral is common and widespread and can occur in dense clusters on reef flats and slopes. The most important known threat for this species is extensive reduction of coral reef habitat due to a combination of threats. Threats of habitat loss, coral bleaching, and the collection of the corals for aquarium and curio trade have made it listed as Near Threatened. Because of ocean acidification and reef degradation it will be important to keep tabs on its survival. Coral disease is a serious threat to coral reefs worldwide and a major cause of reef deterioration. The main predator for the mushroom coral is the crown of thorns starfish. The mushroom coral is found on back reef, flat reef, reaf slopes, and lagoons. This is a solitary, freeliving coral found at depths of 1-20 meters.