The Acanthurus leucosternon, or Powder Blue Tang, is a highly sought-after species for marine aquarium enthusiasts due to its vivid colours and active swimming behaviour. This XXL variant is a mature specimen, showcasing the full brilliance of its blue body, yellow dorsal fin, and contrasting white face.
Care Level: Moderate to advanced. This species requires stable water parameters and a well-established aquarium.
Temperament: Generally 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 diet rich in marine algae and seaweed, supplemented with high-quality herbivore flakes and pellets. Occasional meaty treats can be offered but should not dominate the diet.
Minimum Tank Size: Due to its active nature and adult size, a minimum of 250 litres (approximately 65 gallons) is recommended to provide ample swimming space.
Lighting Requirements: Standard marine aquarium lighting is sufficient. Ensure lighting supports healthy algal growth for grazing.
Water Flow: Moderate to strong water movement mimics natural reef environments and supports fish health.
Placement: Best kept in a well-decorated tank with plenty of live rock for grazing and hiding spots. Avoid overcrowding to reduce stress.
Origin: Indian Ocean, including the Maldives and Sri Lanka.
Maximum Size: Up to 38 cm (15 inches) in length.
Reef Safe: With Caution. While generally safe with corals, it may nip at some sessile invertebrates or clam mantles.
Overall, the XXL Powder Blue Tang is a stunning addition to large marine aquariums, requiring attentive care and a spacious environment to flourish.



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