At a glance the quick version
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
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
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.
- FeedingSmall amounts once or twice a dayevery day
- Temperature checkevery day
- Salinity checkevery week
- Top-upTop up evaporation with fresh RO water, not salt waterevery day
- Water testevery week
- Water changeAbout 10 to 20% of the waterevery 2 weeks
- Glass cleanevery week
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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.
- FishBase: Halichoeres melanurus fishbase.seused for distribution, size, depth, habitat, diet, colours, IUCN
- Wikipedia: Halichoeres melanurus en.wikipedia.orgused for other names, history, size, display behaviour
- 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.