Achilles Tang

Buy Achilles Tang Online The Achilles Tang (Acanthurus achilles) is one of the most sought-after showpiece fish in the saltwater hobby, known for its deep black body and striking orange tail marking. This is an expert-level tang that thrives in large, high-flow systems and delivers unmatched movement and presence in a mature reef tank. Quick Care Facts Care Level: Expert Temperament: Semi-aggressive Diet: Herbivore Reef Safe: Yes Minimum Tank Size: 180+ gallons Max Size: ~9 inches Origin: Hawaii / Pacific Behavior & Compatibility The Achilles Tang is an extremely active swimmer that requires open space and strong water movement. It can be aggressive toward other tangs, especially in smaller or crowded tanks, so it is best kept as the only surgeonfish unless the system is very large. It does well with confident, non-aggressive tankmates and performs best in stable environments without constant stress or competition. Diet & Feeding This species is a dedicated herbivore t