Furry Diary

Not furry, but we like them anyway.

Melanurus Wrasse

Halichoeres melanurus

Also called Tail-spot wrasse, Tailspot wrasse

SpeciesShort profile

From Indo-Pacific: Bali and Western Australia to Micronesia and Samoa, north to Japan and south to Australia12

At a glance the quick version

Length12 to 14 cm21
Sizesmall
Bright striped colours
Peaceful
Helps keep pest worms and snails in check
3

Looks how to spot one

Slender wrasse

A slim wrasse with a blue-green body striped horizontally in orange, pink or yellow. Females and young fish show dark eye-spots on the dorsal fin and near the tail, and males can brighten their colours dramatically when courting.123

Coloursblue-greenorangepinkyellowblack spots (females)13

Personality what they are like

Peaceful and busy, getting along with calm tankmates and even with others of its own kind.3

Daily activity how busy a day looks

An active swimmer that patrols the rockwork during the day and needs a sandy bottom.3

Grooming and care the hands-on bits

Offer meaty foods such as enriched frozen mysis and brine shrimp. It may also snack on small ornamental invertebrates.3

Home where they are happiest

Minimum about 50 US gallons (189 L) with a sandy bottom. Wild fish live on shallow coral reefs and rocky shores at 1 to 15 m.31

Food basics what goes in the bowl

Carnivore. In the wild it eats small invertebrates such as worms, copepods, isopods and forams; in aquariums it takes meaty frozen foods.13

Company who they like around

Found alone or in small groups in the wild and forms pairs to breed.1

The story where it all began

Pieter Bleeker described it in 1851 as Julis melanurus. Its common name refers to the dark spot near the tail, and it is a popular display fish in public aquariums.21

Fun facts for the dinner table

  1. 1

    Males put on a colour show, flashing brighter hues when females are near.2

  2. 2

    It readily hunts fireworms and small snails in aquariums.3

  3. 3

    Females wear eye-spots on the dorsal and tail fins that males lack.2

  4. 4

    It is a favourite display species in public aquariums.2

Recognised by the official bits

IUCN Red List
Least Concern (assessed 2008)1

The care rhythm Furry Diary remembers it for you

A typical home-care rhythm for a Melanurus Wrasse. It is our own starting plan, not a vet's advice, and you can change every line in the app.

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Where this comes from

Every breed page shows where each fact comes from. If we got something wrong, sorry, we are pet people, not a science magazine. Tell us at [email protected] and we will fix it.

  1. FishBase: Halichoeres melanurus fishbase.seused for distribution, size, depth, habitat, diet, colours, IUCN
  2. Wikipedia: Halichoeres melanurus en.wikipedia.orgused for other names, history, size, display behaviour
  3. LiveAquaria: Melanurus Wrasse liveaquaria.comused for care, tank size, temperament, diet, colours

Checked 2026-09-30. Text is written in our own words from these sources.