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Powder blue tang (Acanthurus leucosternon)
Photo: Diego Delso · CC BY-SA 4.0 via Wikimedia Commons

Powder blue tang

Acanthurus leucosternon · Acanthuridae

Also known as Powder blue surgeonfish

Advanced

An Indian Ocean showpiece, stunning but ich-prone and demanding on space and water quality.

In short: A powder blue tang needs at least 570 L (151 US gal), water at 24–27 °C (75–81 °F) and pH 8.1–8.4. It is aggressive, usually kept singly, and rated advanced to keep.

Updated

Minimum tank
570 L (151 US gal)
Temperature
24–27 °C (75–81 °F)
pH
8.1–8.4
Adult size
23 cm (9.1 in)
Group size
1+

Reef & marine husbandry

Specific gravity
1.023–1.026
Reef safety
Reef safe
With corals
Reef safe.
With inverts
Reef safe.
Minimum in a mixed reef
570 L (151 US gal)
Minimum fish-only (FOWLR)
500 L (132 US gal)
Aggression
Highly aggressive to other tangs; quarantine before adding.
Feeding
Continuous grazing plus two feeds daily.

Care requirements

Minimum tank volume
570 L (151 US gal)
Temperature
24–27 °C (75–81 °F)
pH
8.1–8.4
Hardness
8–12 dGH
Lifespan
10–20 years
Diet
Herbivore — nori, algae pellets, occasional mysis.
Care level
Advanced

Origin & habitat

Native region
Indian Ocean, Andaman and Sri Lankan reefs
Water type
Saltwater
Biotope
Surge-swept outer reef
Natural conditions
Very high flow and oxygen; zero tolerance for poor quality.

Behaviour & stocking

Temperament
Aggressive
Minimum group
1 fish
Swims
All levels
Good tank mates
Large peaceful wrasses
Clownfish
Foxface
Avoid
Other surgeonfish
Anything shy

Breeding & difficulty

Breeding difficulty
Advanced
Sexing
Not visually sexable.
Notes
Not bred in captivity.
Common ailments
Marine ich
Marine velvet
HLLE
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