Powder Blue Tang

• ExerciseVery high

  A powerful swimmer that needs a long tank and real swimming space.

• GroomingAttentive tank care

  Sensitive to water quality — stay on top of testing and maintenance.

• Living spaceLarge tank

  Needs a large aquarium — several hundred liters.

• Owner experienceFor experienced owners

  Rewards owners who know the ropes.

• Commitment10–20 years

  Plan for a long, loving relationship.

Health to watch: Ich (white spot) · Fin rot · Parasites

The Powder Blue Tang inhabits Indian Ocean reefs, favoring surge-swept outer slopes, and grows to roughly 20-23 cm. It is a fast, restless swimmer and one of the most ich-prone fish in the hobby, so a proper quarantine and a stress-free environment are essential. Provide a 375-litre (100-gallon) or larger tank with strong flow, high oxygenation, and long open runs at 24-26C, salinity 1.024-1.026, pH 8.1-8.4. Diet should be heavily algae-based: constant access to nori and marine herbivore foods plus some meaty supplements keeps its immune system strong. It can be aggressive toward other tangs and should usually be the only surgeonfish in the system. Best suited to established, stable reef tanks.

• How active is a Powder Blue Tang?

  Very high. A powerful swimmer that needs a long tank and real swimming space.

• How much maintenance does a Powder Blue Tang need?

  Attentive tank care. Sensitive to water quality — stay on top of testing and maintenance.

• What tank size does a Powder Blue Tang need?

  Large tank. Needs a large aquarium — several hundred liters.

• Is a Powder Blue Tang a good fit for first-time owners?

  For experienced owners. Rewards owners who know the ropes.

• How long do Powder Blue Tang live?

  10–20 years. Plan for a long, loving relationship.

• What health issues affect the Powder Blue Tang?

  Keep an eye out for Ich (white spot), Fin rot, Parasites. These are worth raising with your vet, along with any screening they recommend.

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