Lieutenant TangThe Lieutenant Tang (Acanthurus tennentii) is a beautiful and active surgeonfish with a sleek grey to blue toned body, bold facial markings, and distinctive dark shoulder bars that become more noticeable as the fish matures. It is a strong, eye catching swimmer that brings plenty of movement to a larger reef aquarium. This species is generally reef safe and spends much of its day grazing across rockwork, helping to pick at natural algae growth within