ExploreFish

Blue Tang

Paracanthurus hepatus

The Blue Tang is a stunning blue fish with a yellow tail. It swims gracefully in the ocean and loves to munch on algae.

Habitat: Coral reefs

Appearance

The Blue Tang is a vibrant, disc-shaped fish with an intense royal blue body, bright yellow tail, and striking black markings resembling an artist's palette. Its slender form and contrasting colors make it highly distinctive among reef fish.

KingdomAnimaliaPhylumChordataClassActinopterygiiOrderPerciformesFamilyAcanthuridaeGenusParacanthurus
Blue Tang
wildlife trait badgecolorful trait badgeherbivorous trait badgediurnal trait badge
Blue Tang

Category

Fish

Rarity

Common

Danger

2/5

Snaps

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Interesting facts

At night, Blue Tangs often turn a pale, grayish-blue to blend in with the dark reef!

Baby Blue Tangs are tiny and yellow, slowly turning blue as they grow up!

Blue Tangs are crucial gardeners of the reef, keeping algae in check!

They use their sharp, hidden 'scalpels' to defend themselves by thrashing their tails!

Special abilities

Ability

Hidden Blades

Blue Tangs have sharp, scalpel-like spines near their tail that pop out to protect them from danger.

Ability

Color Communicator

Blue Tangs can change their color intensity from bright blue to dark purple to signal stress or fright.

Ability

Mucus Armor

Blue Tangs produce a protective slime layer on their skin that helps defend against parasites and predators.

Measurements & details

Length
15-31 cm
Weight
0.1-0.5 kg
Lifespan
8-12 years
Swim Speed
10 km/h
Max Depth
40 m
Water Type
Saltwater

Diet & Feeding

Blue Tangs are busy vegetarians, munching on tiny algae found on rocks and corals.

Primary Foods

  • algae
  • phytoplankton
  • marine plants

Foraging Method

  • Grazing

Ecological connections

eaten by

Leopard Coral Grouper

Plectropomus leopardus

Larger predatory fish often hunt Blue Tangs for food.

eaten by

Grey Reef Shark

Carcharhinus amblyrhynchos

Sharks are apex predators in coral reefs, including the tangs.

eats

Brown Algae

Dictyota bartayresiana

Blue Tangs primarily graze on various types of microalgae.

symbiotic with

Bluestreak Cleaner Wrasse

Labroides dimidiatus

Cleaner fish remove parasites from the Blue Tang's skin.

Traits

Also known as

Hippo TangPalette Surgeonfish

Collections

Safety

Danger

2/5

Watch quietly from a distance and never try to feed or chase wild animals.

Frequently Asked Questions

How long is Blue Tang?

15-31 cm

How much does Blue Tang weigh?

0.1-0.5 kg

How long does Blue Tang live?

8-12 years

What does Blue Tang eat?

Blue Tangs are busy vegetarians, munching on tiny algae found on rocks and corals.

How fast can Blue Tang swim?

10 km/h

Where is Blue Tang usually found?

Coral reefs

How does Blue Tang hunt?

Grazing

How deep can Blue Tang go?

40 m

Snap Map

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Where to spot

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