Powder Blue Tang (Acanthurus leucosternon) in aquarium
๐ŸŒฟ Saltwater ยท Tropical

Powder Blue Tang

Acanthurus leucosternon โ€” Acanthuridae
๐Ÿ“ Size:ย 12-15
โณ Lifespan:ย 5-8
โญ Care level:ย Beginner

Overview

The Powder Blue Tang is a vibrant, peaceful addition to any saltwater aquarium. With its striking blue coloration and graceful swimming, it adds a sense of calm to the tank. It requires a well-maintained aquarium with ample swimming space and is best kept with compatible tankmates. Regular water changes and a balanced diet are essential for their health.

Quick fact: Acanthurus leucosternon belongs to the family Acanthuridae. Care level: beginner.

Scientific Classification

RankClassification
FamilyAcanthuridae
GenusAcanthurus
SpeciesAcanthurus leucosternon
Water typesaltwater

Natural Habitat

Native to the Pacific Ocean, particularly the Indo-Pacific region, these tangs inhabit shallow coral reefs and can be found in a variety of habitats from lagoons to reef flats.

Appearance

The Powder Blue Tang has a sleek, oval body with a bright powder blue coloration and a distinctive black face mask that contrasts with its yellow caudal fin. Its tail is crescent-shaped and its dorsal and anal fins are long and flowing.

Coloration: powder blue with a black face mask and yellow caudal fin

Behavior

While not a schooling fish, they are generally peaceful and can be kept with other tangs or compatible species. They are active swimmers and need a tank with plenty of swimming space. They are also known to be sensitive to stress and require a calm environment.

TraitValue
Temperamentpeaceful community fish
SchoolingNo
Activity levelmoderate
Important: requires ample swimming space and can be prone to stress

Water Requirements

ParameterIdeal RangeNotes
Temperature24โ€“27ยฐC (75โ€“81ยฐF)Use a reliable adjustable heater
pH8.1โ€“8.4Avoid sudden swings
Hardness (GH)8-12 dGH dGHSoft to moderately hard
Ammonia0 ppmAny detectable ammonia signals a problem
Nitrite0 ppmToxic even at low levels
Nitrate<20 ppmManage through regular partial water changes
Min. tank125L (33 gal)Larger tanks are easier to keep stable
Important: Always dechlorinate tap water before adding it to the tank. Chlorine and chloramines damage a fish's gills and reduce life expectancy.

Interesting Facts

  • The Powder Blue Tang is a herbivore and feeds primarily on algae, making it a beneficial addition to an aquarium with algal overgrowth.
  • They are capable of rapid color change, which can be a result of environmental factors or mood changes.
  • These tangs can live up to 8 years in captivity with proper care.

๐Ÿ“‹ Full Care Guide

Ready to set up a tank for your Powder Blue Tang? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.

Read Powder Blue Tang Care Guide โ†’

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Editorial review

This species profile was reviewed for biological accuracy and practical aquarium care guidance. For suspected illness or disease, test your water parameters first and consult an aquatic veterinarian if symptoms persist.