Common name: large-grooved brain coral

General information

The Boulder Brain Coral, Colpophyllia natans, is a large polyp stony (LPS) coral known for its meandering, groove-and-ridge appearance that resembles a brain's surface. This coral is a part of the Mussidae family and is often a highlight in reef aquariums due to its impressive size and intricate patterns.

Care

Boulder Brain Coral requires moderate care. It thrives in a well-established reef tank with stable water conditions. Moderate lighting and water flow are ideal to meet its photosynthetic needs while preventing sediment accumulation on its surface. Supplemental feeding with plankton or other fine particulate foods can promote growth and health.

Symbiosis

While not hosting fish or invertebrates like some anemones or corals, Colpophyllia natans does engage in a symbiotic relationship with zooxanthellae, photosynthetic algae that live within its tissues. This mutualistic relationship allows the coral to receive nutrients from the algae's photosynthesis, while the algae benefit from a protected environment and the coral's waste products.

Habitat

Naturally found in the Caribbean Sea, the Gulf of Mexico, and the western Atlantic Ocean, Colpophyllia natans prefers shallow reef environments. It is often seen in back reef and fore reef zones where it can spread its wide, meandering valleys that are characteristic of its 'brain-like' appearance.