Scarlet Pinstripe Wrasse (Pseudocheilinus evanidus)

The Scarlet Pinstripe Wrasse, also known as the Striated Wrasse or the Disappearing Wrasse, is the elusive and “spicy” relative of the common Six-line Wrasse. Its Latin name, evanidus, literally means “vanishing”a tribute to its incredible ability to dart into rockwork and seemingly disappear into thin air. While it lacks the “neon disco” colors of the Mystery Wrasse, it offers a deep, sophisticated maroon aesthetic and is a powerhouse when it comes to controlling reef pests.

Key Information

• Common Names: Scarlet Pinstripe Wrasse, Secretive Wrasse, Striated Wrasse

• Scientific Name: Pseudocheilinus evanidus

• Origin: Wide Indo-Pacific (Red Sea to Hawaii and South Africa)

• Max Size: 89 cm (approx. 3.5 inches)

• Lifespan: 46 years

• Temperament: Semi-aggressive; can be a “secretive bully”

• Diet: Carnivore Pest control specialist

• Care Level: Moderate

Appearance & Identification

The Scarlet Pinstripe is defined by its subtle, high-density texture:

• The “Striated” Body: A deep reddish-orange to maroon base covered in roughly 25 fine, horizontal white pinstripes that run the length of the body.

• The Facial Streak: Features a distinct pale blue-to-white streak running from the corner of the mouth toward the gill cover.

• The Eye: Like other Pseudocheilinus wrasses, it has large, independently moving eyes with “double-bar” pupils.

• The Glow: Interestingly, this species shows red fluorescence under specific lighting, making its bony scales and fin rays appear to “glow” in a deep reef setting.

Behaviour: The “Ghost” of the Rockwork

• The Disappearing Act: True to its name, this fish spends the majority of its time weaving through the “back alleys” of your rockwork. It emerges primarily to forage or during feeding time.

• Pest Control: It is a ruthless hunter of Pyramidellid snails (which parasitize clams), flatworms, and small bristle worms. It is often added to “working” reefs for this exact reason.

• Aggression: Caution is needed. While shy toward humans, it can be quite aggressive toward other wrasses or small, peaceful fish (like Gobies or Firefish) that enter its territory. It is best to make this the last addition to your tank.

• Reef Safe: 100% Reef Safe with corals. However, it may snack on very small ornamental shrimp (like Sexy Shrimp) if given the chance.

Ideal Tank Setup

• Tank Size: A minimum of 115L (30 Gallons). They don’t need a massive “runway” like Tangs, but they need a lot of physical rock surface to feel secure.

• Rockwork: This fish requires a “labyrinth”. Large, porous live rock with many internal caves is essential for its mental health.

• Lid is Mandatory: These wrasses are fast and erratic. If startled, they can easily launch themselves out of the tank through even the smallest opening.

• Feeding: Not a picky eater. It will thrive on vitamin-enriched frozen mysis, brine shrimp, and high-quality pellets.

Why Choose the Scarlet Pinstripe Wrasse?

The Scarlet Pinstripe is for the hobbyist who enjoys “finding” their fish. Its not a showy, open-water swimmer; its an intellectual addition that adds mystery and utility to the reef. Its a “hardy” worker that keeps the pest population in check while providing a beautiful, deep red contrast to the bright colors of a reef.