Ocean Surgeonfish (Acanthurus bahianus)
The Ocean Surgeonfish is a large and striking reef fish, known for its deep blue to bluish-gray body, bold yellow spine near the tail, and sharp scalpel-like caudal peduncle typical of surgeonfish. Its graceful swimming and active grazing behavior make it a dynamic and visually impressive addition to large marine aquariums.
Size: Typically grows up to 15 inches in length
Country of Origin: Western Atlantic Ocean, including the Caribbean Sea, Florida Keys, and the Gulf of Mexico
Latin Name: Acanthurus bahianus
Care Level: Moderate – thrives in spacious, well-established aquariums with stable water parameters, plenty of swimming room, and ample algae for grazing
Ocean Surgeonfish are herbivores that primarily feed on marine algae. In captivity, their diet can be supplemented with dried seaweed, spirulina, and high-quality herbivore flakes or pellets. They are reef safe with caution, generally coexisting peacefully with corals but potentially aggressive toward smaller, more passive tankmates. Their bold coloration and active grazing make them an excellent choice for adding both beauty and ecological balance to marine systems.