Katherine's Fairy Wrasse (Cirrhilabrus Katherinae)

The Katherine's Fairy Wrasse (Cirrhilabrus katherinae) is a prized, vibrant marine species known for its peaceful disposition and striking coloration. Originating from the Western Pacific, this reef-safe fish features distinct sexual dimorphism, with males showcasing bold red and purplish patterns with brilliant flashing displays and females displaying subtle reddish-pink tones.

Ideal for established community aquariums, this active zooplankton feeder thrives in systems with ample swimming space and abundant live rock caves. It coexists harmoniously with docile tankmates, corals, and ornamental invertebrates without disturbing sessile life.

Key Features

Highlights

• Scientific Name: Cirrhilabrus katherinae
• Primary Common Name: Katherine's Fairy Wrasse
• Other Common Names: Katherine's Wrasse
• Origin: Western Pacific (Japan, Philippines, Palau)
• Max Size: 4 inches (10 cm)
• Temperament: Peaceful / Docile (Timid; should be the first wrasse added)
• Diet: Carnivore/Zooplankton Feeder (Needs multiple daily feedings)
• Minimum Tank Size: 50–90 Gallons
• Reef Compatibility: Yes (Safe with all corals and invertebrates)

Materials & care

• Size: This is a smaller Fairy Wrasse, growing to a maximum size of about 3–4 inches (7–10 cm).
• Minimum Tank Size: A tank of 50–90 gallons is recommended. While small, this fish is very active and needs plenty of open swimming space alongside rockwork.
• Temperament: Peaceful and Docile. Katherine's Fairy Wrasse is a timid species that should only be kept with other peaceful fish. It may be easily stressed or outcompeted for food by aggressive tankmates (like some tangs, angels, or damsels). It can be kept singly or in a harem (one male and several females) if introduced simultaneously into a large tank. Avoid mixing with other similarly-patterned male Cirrhilabrus species.
• Reef Compatibility: 100% Reef Safe. This wrasse is a strict zooplankton feeder and will not harm corals, clams, or sessile invertebrates. It is also generally safe with ornamental inverts like shrimp and snails.
• Diet: Carnivore/Zooplankton Feeder. Due to its high activity level and fast metabolism, it requires a diverse, protein-rich diet provided in small amounts multiple times per day (3-4 times). Offer high-quality enriched frozen foods (mysis, copepods, brine shrimp) and fine marine pellets or flakes.
• Tank Requirements:
• Lid: A tight-fitting lid is absolutely critical, as this wrasse, like all in the genus, is a notorious jumper.
• Hiding Spots: It is essential to provide abundant live rock structure with plenty of caves and shaded crevices, as this fish is used to deeper water and may be shy, especially upon introduction. They do not burrow in the sand to sleep.

Compatibility

Compatible with peaceful, docile community fish and 100% reef-safe with all corals and sessile invertebrates. Avoid keeping with aggressive species such as dominant tangs, large angelfish, or aggressive damsels, as well as similarly patterned male Cirrhilabrus wrasses.

Important Fulfillment Information

Fish and corals ship Monday through Thursday. Not all fish are sexed. If so it will specify.

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Shipping Cost Disclosure

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