The Acanthurus achilles, or Achilles Tang, is a visually stunning tang species recognised by its deep black body contrasted with bright orange markings and a white tail spine. This medium-sized fish is a popular choice among marine aquarium enthusiasts seeking a vibrant and active addition to their reef or fish-only setups.
Care Level: Moderate to advanced. The Achilles Tang requires stable water parameters and a well-maintained aquarium.
Temperament: Semi-aggressive. It can be territorial, especially towards other tangs or similar-shaped fish, so careful consideration of tank mates is essential.
Diet: Primarily herbivorous. Provide a varied diet rich in marine algae and seaweed, supplemented with high-quality prepared foods such as spirulina flakes and mysis shrimp to ensure optimal health.
Minimum Tank Size: At least 180 litres (approximately 50 gallons) to allow ample swimming space and reduce territorial behaviour.
Lighting and Water Flow: Moderate to strong lighting to support natural behaviour and algae growth. Moderate to strong water flow mimics their natural reef environment and promotes health.
Placement: Best housed in a spacious aquarium with plenty of live rock for grazing and hiding spots. Avoid overcrowding to reduce stress and aggression.
Reef Compatibility: With caution. While generally reef safe, the Achilles Tang may nip at certain sessile invertebrates or coral polyps, so monitor behaviour closely.
Origin: Tropical Pacific Ocean.
Maximum Size: Up to 23 cm (9 inches) in length.
Providing a stable environment with regular water changes and a balanced diet will help ensure your Acanthurus achilles thrives in captivity.
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