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Blue tang

Saltwater Advanced Semi-aggressive

Blue tang grows to about 30 cm and needs a tank of at least 150 UK gal. Here's how to keep it healthy and what it lives well with.

Quick facts

Water type
Saltwater
Group
Marine fish
Difficulty
Advanced
Temperament
Semi-aggressive
Swims
All levels
Adult size
30 cm
Minimum tank
150 UK gal
Min swim length
180 cm
Group size
Fine on its own

Water parameters

Temperature
24–27 °C
pH
8.1–8.4
Hardness
8–12 dGH

Tank & care

Blue tang doesn't need a group and can be kept singly; choose tankmates to suit its temperament.

Give it at least 180 cm of swimming length and hold the water around 24–27 °C. Match any new species to these ranges before adding them.

Plan a tank with this fish

Use the stocking calculator to see how many Blue tang your tank can hold and whether your planned tankmates are compatible — it's anchored to your net water volume and footprint.

Open the stocking calculator Calculate tank volume

Figures are conservative hobby-consensus estimates for planning. Individual fish vary — always research a species and watch how yours behave.

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