The Fourline Wrasse is a small, gorgeous wrasse from Hawaii.  The Fourline Wrasse has a Hunter Green colored body with horizontal neon blue lines running along its body. They have bright eyes highlighted in red, which also have a horizontal band. As they move their eye upward or downward the band becomes more noticeable. These fish are very peaceful and love to swim around with curiousity. The Fourline are also beneficial for their interest in eating nuisance bristle and flat worms. As with most Pomacanthus Angels, these fish go through extraordinary color changes from juvenile to adult. Wrasses are also able to change their sex during these phase changes.

Fourline Wrasse  (Pseudocheilinus tetrataenia) for Saltwater Marine Aquariums

The Fourline Wrasse, scientifically known as Pseudocheilinus tetrataenia, is a delightful addition to saltwater marine aquariums, prized for its vibrant colors and active nature. Here's a comprehensive guide to keeping this fascinating species in your aquarium environment.

Fourline Wrasse Habitat and Natural Environment

The Fourline Wrasse is commonly found in the Indo-Pacific region. It inhabits coral reefs and rocky areas with ample hiding spots and moderate water flow. It prefers areas with abundant coral growth and sandy substrates.

Fourline Wrasse Reef Compatibility

This species is generally considered reef-safe, as it rarely exhibits any destructive behavior toward corals or other invertebrates. However, caution should be exercised with small crustaceans and ornamental shrimp, as the Fourline Wrasse may view them as potential prey.

Fourline Wrasse Size and Lifespan

In captivity, the Fourline Wrasse typically grows to a maximum size of around 3 inches. They can live for 5 to 7 years or even longer with proper care in optimal conditions.

Fourline Wrasse Diet in Captivity

In captivity, the Fourline Wrasse should be offered a varied diet consisting of high-quality marine flake or pellet food supplemented with frozen or live foods such as brine shrimp, mysis shrimp, and chopped seafood. Their diet should mimic their natural feeding habits, primarily consisting of small crustaceans and zooplankton.

Fourline Wrasse Aquaculture and Availability

While aquacultured specimens of the Fourline Wrasse are becoming increasingly available, wild-caught individuals are still familiar with the aquarium trade. It's recommended to source specimens from reputable suppliers who prioritize sustainable collection practices.

Fourline Wrasse Compatibility with Other Fish and Invertebrates

The Fourline Wrasse is generally peaceful towards other fish species but may exhibit aggression towards conspecifics or similar wrasse species. Suitable tank mates include peaceful community fish such as Anthias, Clownfish, and Gobies and compatible invertebrates like cleaner shrimp and small hermit crabs.

Fourline Wrasse Sexual Dimorphism and Coloration Changes

Juvenile Fourline Wrasses exhibit subdued coloration, typically sporting a pale yellowish body with faint vertical stripes. As they mature, their coloration intensifies, displaying vibrant blue and yellow stripes along their body. Sexual dimorphism is minimal, with males and females exhibiting similar color patterns.

Fourline Wrasse Temperament

The Fourline Wrasse is known for its active and curious nature. It constantly explores its environment and forages for food. While generally peaceful, it may occasionally display territorial behavior towards other wrasses or similar-looking species.

Fourline Wrasse Tank Requirements

To accommodate the needs of the Fourline Wrasse, a saltwater aquarium should meet the following criteria:

• Minimum Tank Size: 30 gallons (113 liters) to provide ample swimming space.
• Water Conditions:
  • pH: 8.1-8.4
  • Salinity: 1.023-1.025
  • Water Temperature: 75-82°F (24-28°C)
  • Water Flow: Moderate

Fourline Wrasse Other Common Names

The Fourline Wrasse may also be known as the Striped Wrasse or Fourline Pencil Wrasse.

Five Compatible Tank Mates

• Royal Gramma (Gramma loreto)
• Firefish Goby (Nemateleotris magnifica)
• Cleaner Wrasse (Labroides dimidiatus)
• Banggai Cardinalfish (Pterapogon kauderni)
• Orchid Dottyback (Pseudochromis fridmani)

Why Purchase from Saltwaterfish.com

Saltwaterfish.com prides itself on offering high-quality marine livestock sourced from reputable suppliers. Our specimens are carefully quarantined and acclimated to ensure they arrive healthy and ready to thrive in your aquarium. With a commitment to sustainable practices and exceptional customer service, Saltwaterfish.com is your trusted source for premium marine fish and invertebrates.