Wrasse

Wrasse key facts

Care level

Beginner-friendly

Lifespan

5-10 years

Size

8-20cm

Diet

Frozen food, Artificial feed

Housing

Sand bed (5cm+) needed (sleeps buried in sand)

Feeding

Cleaner fish that eats parasites

Compatibility

Depends on species. Many are peaceful

Notes

Jumpers, lid is essential

About Wrasse

The family Labridae (wrasses) encompasses over 600 species inhabiting shallow tropical and subtropical seas worldwide, making it one of the most species-rich and colorful families in the marine aquarium hobby. Color patterns differ dramatically between juveniles, females, and males—many species undergo striking sex-change transitions accompanied by brilliant shifts to blue, green, red, or purple hues. Wrasses have a characteristic elongated, fusiform body and a distinctive rowing swimming style using their pectoral fins. Their temperament is typically bold and curious; settled individuals often interact with their keepers. Most species lean toward carnivory, with several well-known "cleaner" wrasses consuming parasites and small crustaceans in the wild. The instinct to burrow into sand at night—an anti-predator behavior retained from the wild—is one of the most captivating aspects of keeping wrasses and is a delight to observe in a home aquarium. Given suitable conditions, wrasses are relatively hardy and long-lived, making them a popular choice for hobbyists venturing into the marine fishkeeping world.

7 things to know before welcoming a Wrasse

1. 1Sand-Diving Behavior

   Most wrasses bury themselves in sand at night or when startled, so a fine coral sand bed of at least 5 cm deep is essential. Without adequate substrate they may become stressed and refuse to eat. It is normal for newly introduced wrasses to remain hidden in the sand for several days.

2. 2Escape-Proof the Tank

   Wrasses are powerful swimmers and notorious jumpers, especially when startled. A tight-fitting lid with no gaps around cables or pipes is essential to prevent fatal escape accidents. Securing the aquarium cover is one of the most important steps before introducing any wrasse.

3. 3Choosing Tank Mates

   Wrasses can be territorial toward their own and related species, so carefully consider species and gender combinations when keeping multiple wrasses together. Small shrimp and other crustaceans are often viewed as prey and are generally not safe tank mates. Pairing wrasses with peaceful, medium-sized fish tends to work best.

4. 4Feeding and Diet

   Wrasses are predominantly carnivorous, feeding on worms, crustaceans, and small fish in the wild. Transitioning them to frozen mysis, brine shrimp, and high-quality pellets is key to long-term success. Feed two to three small portions daily, removing any uneaten food promptly.

5. 5Water Quality Management

   Maintain salinity at 1.023–1.025, water temperature between 24–26°C, and keep nitrates as low as possible, as with most marine fish. Some wrasse species are moderately sensitive to declining water quality, making regular water changes and proper filtration essential. Pay special attention to avoiding sudden parameter shifts during the acclimation period.

Frequently asked questions about Wrasse

Q.Can wrasses be kept in a reef tank with corals?

A.It depends on the species. Many wrasses such as fairy wrasses and sixline wrasses are reef-safe and won't bother corals. However, some species will prey on ornamental shrimp and small crustaceans, so verify the specific species' diet before adding it to a mixed reef system.

Is it abnormal if my wrasse stays buried in the sand?

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