Boulder Star Coral

About

Boulder star coral (Orbicella faveolata) is one of the most ecologically significant reef-building corals in the Western Atlantic, forming the kinds of massive, dome-shaped colonies you see as the backbone of Caribbean reef structures. Colonies grow in rounded or columnar forms when conditions are favorable, transitioning to flatter, plate-like growth at their margins. A flexible strategy that helps them capture light across varying depths. They're found from shallow water down to around 40 meters, turning up across a wide range of reef habitats throughout the region. The individual corallites are small, roughly 2 to 3 millimeters across, with thin walls and fine septa that give the colony surface a neat, tessellated texture. Coloration tends toward earthy tones, browns, greys, and muted yellowish-greens, which isn't flashy but suits the animal's role as a structural pillar of the reef rather than a showpiece. In the aquarium, this species is rated intermediate in care, which is fair. It tolerates moderate lighting and moderate flow and doesn't demand the intense conditions some SPS corals require, but it grows slowly and rewards patient, consistent husbandry rather than shortcuts. It's reef safe and a genuinely meaningful piece of natural history to keep.