Bahamian Sea Fan

About

The Bahamian sea fan (Gorgonia flabellum) is one of the most recognizable gorgonians in the Western Atlantic, found from shallow reef crests down to about 16 meters across Caribbean and subtropical waters. Its broadly flattened, fan-shaped colony branches into a dense, lace-like network that it orients perpendicular to prevailing currents. A strategy for filtering as much passing water as possible. That same habit makes flow one of the most important things to get right in an aquarium setting. Strong, consistent, ideally randomized water movement is not optional with this species; poor circulation leads to a slow decline. In the wild it occurs in relatively bright, shallow reef environments, so moderate lighting suits it well without pushing into the intense ranges that many SPS corals demand. Like other photosynthetic gorgonians, it hosts symbiotic zooxanthellae, which means it can meet a good portion of its nutritional needs through light, though supplemental feeding with fine particulate foods is generally beneficial. This is not a coral for beginners, it rewards keepers who already have stable tank chemistry and a feel for dialing in flow, but for an intermediate aquarist with a well-established reef, it makes a genuinely dramatic structural centerpiece.