
Blue tang
Paracanthurus hepatus
Cobalt blue, black palette marking, yellow tail. The largest here.
The Blue tang (Paracanthurus hepatus) is a tropical marine fish of the family Acanthuridae. It lives on and around reefs, between 2 and 40 m deep. Adults grow to about 22 cm; the largest on record measured 31 cm (total length). In the aquarium it needs a tank at least 250 cm long and water at 23–27 °C.
- Size
- 22 cm
- Smallest tank
- 250 cm
- Temperature
- 23–27 °C
- Care
- Demanding
In the aquarium
Temperature23–27 °C
pH7.8–8.5
- Temperament
- Peaceful
- Diet
- Herbivore
- Activity
- Busy
- Water layer
- Mid water
- Group
- Lives on its own
- Coral
- Reef safe
These values are compiled from real species data, and the LumaReef simulation is built to keep them true to life.
Which tank it fits
- Nano60 cm · 65 litresToo small
- Standard90 cm · 180 litresToo small
- Wide120 cm · 300 litresToo small
- Living room180 cm · 650 litresToo small
- Showcase250 cm · 1,200 litres40 of them
- Gallery300 cm · 1,440 litres48 of them
Who it lives with
Gets along72 species
- Foxface rabbitfish
- Threadfin butterflyfish
- Engineer goby
- Squarespot anthias
- Regal angelfish
- Raccoon butterflyfish
- Dwarf lionfish
- Copperband butterflyfish
- Longnose butterflyfish
- Kole tang
- French angelfish
- Porcupine puffer
- Diamond watchman goby
- Tomato clownfish
- Bicolor angelfish
- Lawnmower blenny
- Midas blenny
- Starry blenny
- Pearlscale butterflyfish
- Longnose hawkfish
- Aiptasia-eating filefish
- Clarkii clownfish
- Leopard wrasse
- Valentini puffer
Caution17 species
Crowding the same layer
Narrow shared temperature range
Not together10 species
Aggressive with peaceful
These two do not get along
In the wild
- Water type
- Marine
- Climate zone
- Tropical
- Habitat
- Coral and rocky reefs
- Largest on record
- 31 cmtotal length
- Aquarium trade
- Traded commercially
Depth
surface
2 m40 m
Conservation status
Classification
- OrderAcanthuriformes
- FamilyAcanthuridae
- GenusParacanthurus
- SpeciesParacanthurus hepatus
In other languages
- English
- Palette Tang
- German
- Paletten-Doktorfisch
- Spanish
- Pez cirujano azul
- French
- Chirurgien-palette
- Italian
- pesce chirurgo tavolozza
- Dutch
- Picassodoktersvis
- Russian
- Голубой хирург
- Japanese
- ナンヨウハギ
- Chinese
- 擬刺尾鯛 (藍倒吊 黃尾副刺尾魚)
Quick answers
- Blue tang size: how big does it get?
- Adults reach about 22 cm. The largest on record measured 31 cm (total length). Record sizes among the 45 Acanthuridae species on LumaReef: 12.2 cm (Blueline Surgeonfish) to 100 cm (Whitemargin Unicornfish).
- Blue tang tank size: what is the minimum?
- A tank at least 250 cm long. In LumaReef that is the Showcase tank or larger.
- Blue tang water parameters: what does it need?
- Temperature 23–27 °C, pH 7.8–8.5. Close to what most Acanthuridae on LumaReef need (23–27 °C).
- Blue tang tank mates: what can it live with?
- It gets along with 72 of the 99 reef species in the catalogue, such as Foxface rabbitfish, Threadfin butterflyfish, and Engineer goby.
- Blue tang: alone or in a group?
- It can be kept on its own.
- Blue tang and corals: is it reef safe?
- Yes, it leaves corals alone.
- Blue tang depth: how deep does it live?
- In the wild, 2 to 40 m down. Close to most Acanthuridae on LumaReef (1–46 m).
Similar species
Sources
Blue tang: compiled from these references.









