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Flasher Wrasse

Paracheilinus rubricaudalis

A rare Fijian flasher wrasse from the outer reef, barely known in the hobby.

Flasher Wrasse
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© (c) Mark Rosenstein, some rights reserved (CC BY-NC) · CC-BY NC

About

Found only around Fiji, this obscure flasher wrasse, Paracheilinus rubricaudalis, is one of the lesser-known members of a genus celebrated for its dazzling males and lively displays. In the wild it inhabits the rubble-strewn slopes of outer reefs, where small mixed-sex groups form with females typically outnumbering the single or few males present. A social structure common across flasher wrasses. Like its relatives, the male almost certainly performs rapid, fin-flaring courtship displays to compete for female attention, though detailed observations of this particular species remain sparse. At a modest adult size, it fits comfortably in a 30-gallon system, and flasher wrasses as a group tend to be peaceful, active fish that coexist well with most reef inhabitants. A tight-fitting lid is a must, since wrasses of this genus are notorious jumpers, especially when first introduced. Being a carnivore, it will appreciate small meaty foods like mysis and enriched brine shrimp offered regularly throughout the day. This is not a species you will commonly find at the local fish store, but for someone building a Fijian biotope or simply chasing something off the beaten path, it is a genuinely interesting little wrasse worth seeking out.

Frequently asked questions

How big does the Flasher Wrasse get?
The Flasher Wrasse reaches about 1.5–3.5" as an adult.
What size tank does the Flasher Wrasse need?
A minimum of 30 gallons is recommended for the Flasher Wrasse, with more room needed for a proper group.
What water parameters does the Flasher Wrasse need?
The Flasher Wrasse does best with a temperature of 72–82°F, a pH of 8–8.4.
Is the Flasher Wrasse aggressive?
The Flasher Wrasse is generally peaceful and suits a community tank with similarly calm tankmates.
What does the Flasher Wrasse eat?
The Flasher Wrasse is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
How long does the Flasher Wrasse live?
With good care, the Flasher Wrasse typically lives 5-8 years.
Is the Flasher Wrasse reef safe?
The Flasher Wrasse is generally considered reef safe.