Skip to content
Fish Saltwater Care: medium Semi-aggressive

Dragon Wrasse

Novaculichthys taeniourus
— No votes yet Rate it
Other names: Rockmover wrasse, Carpet wrasse, Reindeer wrasse, Novaculichthys taeniourus
Group: Marine fish · Family: Labridae · Origin: Indo-Pacific and eastern Pacific — from the Red Sea and South Africa to the Tuamotus and Hawaii; from the Gulf of California to Panama and the Galápagos

A wrasse that mimics a drifting piece of seaweed with its long dorsal spines when young and hunts by flipping rocks as an adult. It reaches 30 cm; because it moves decor around and eats invertebrates, it is not suitable for a reef.

Will it suit my tank?

Last updated October 16, 2026

Temperature
24–27°C
pH
8.1–8.4
Adult size
30 cm
Minimum tank size
600 liters
Social structure
Solitary
Swimming zone
Bottom
Diet
Carnivore
Breeding
Egg scatterer

Water parameters

Temperature24–27°C
pH8.1–8.4
Recommended range
May escape, needs a lid Eats shrimp Eats snails At most 1 per tank

Overview

October 16, 2026 · Suggest an edit

The dragon wrasse is usually sold as a juvenile in stores: at this stage, with its green, brown and reddish mottled body and long flag-like dorsal spines, it swims swaying like a piece of seaweed drifting in the waves. As it grows these extensions disappear and it turns into a large, dark-colored wrasse. Its English name "rockmover" comes from the way adults flip rocks and rubble with their mouths to hunt the mollusks, sea urchins, brittle stars, worms and crabs underneath. Specimens are wild-collected.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 600 liters for an adult; a sand bed at least 8 cm deep, because it buries itself in the sand at night and when in danger.
  • Rocks must be secured to the bottom; small stones and coral fragments are constantly moved around.
  • Salinity specific gravity 1.023–1.026, pH 8.1–8.4, temperature 24–27°C; a lid is essential.
  • Not reef-safe: It knocks over decor and coral fragments; it eats shrimp, crabs, snails and sea urchins.

Diet

October 16, 2026 · Suggest an edit

Carnivorous. It is fed 1–2 times a day with chopped mussels, shrimp and squid, krill, frozen mysis and granule foods.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

A territorial and busy fish; it rearranges the aquarium all day long. It usually gets along with fish of a similar size and is aggressive towards its own species.

Good companions: Tangs, large angelfish, triggerfish, foxface, morays, groupers.

Avoid: Reef aquariums, invertebrates, very small fish, a second dragon wrasse.

A short profile for this species

The Dragon Wrasse page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Should not be kept together

Hobbyist notes

0 notes

Things you won't find in books, learned by trial and error. The most helpful ones are on top.

No notes yet. If you have experience with this species, leave the first note.
Change history and contributors
  1. Page created · October 16, 2026