Cirrhilabrus katoi

Datasheet

General Description

The Cirrhilabrus katoi, known as the Fairy Wrasse, is part of the Labridae family, characterized by its vibrant and colorful appearance. These fish are relatively small, reaching a maximum size of around 7.0cm. They are typically found in Japan and are recognized for their striking hues and unique behavior, often sleeping between rocks in a protective mucus cocoon.

Aquarium Suitability and Demands

Fairy Wrasses are generally suitable for aquarium life, but they have specific demands that need to be met. They thrive in larger tanks of at least 300 liters, preferably with peaceful tankmates as they can be aggressive towards closely related species. To prevent injury from jumping out, they require a secure lid on the aquarium.

Care and Hardiness

Considered to have average hardiness, these fish are sensitive during transportation and acclimatization, requiring careful handling. They are shy and docile, best kept in pairs or with one male and multiple females. Adequate hiding spots within the tank are essential for their well-being.

Reef Suitability

Fairy Wrasses are a great addition to reef aquariums due to their attractive appearance and their knack for preying on unwanted invertebrates like flatworms and pyramide snails. They are considered reef-safe and contribute to the ecosystem's balance.

Aquarium Setup

The aquarium setup for Fairy Wrasses should include ample hiding places between live rocks, a secure lid to prevent jumping, and a spacious tank to accommodate their active swimming behavior. Water conditions should be kept within a temperature range of 22.2-25.6°C (72-78°F) and pH levels between 8.1-8.4.

Behaviour

These fish exhibit interesting behaviors, such as color-changing displays during courtship, and the formation of social structures within a group. They are best introduced simultaneously or with females first to mitigate aggression among males.

Feeding and Diet

Fairy Wrasses should be fed multiple times a day, with a diet consisting of small crustaceans like krill and mysis, as well as zooplankton such as Cyclops and pods. A varied and high-quality diet is crucial for maintaining their vibrant colors and overall health.

Dimorphism (and captive reproduction If covered)

Male and female Fairy Wrasses can display significant differences, including color variations and the ability to change genders from male to female and vice versa. Males can exhibit flashing colors during courtship, adding to their allure in a captive setting. Captive reproduction can be facilitated by providing a suitable environment conducive to breeding behaviors.

Habitat and Distribution

Native to Japan, Fairy Wrasses are commonly found in the waters of this region, inhabiting coral reefs and rocky crevices. Their distribution is influenced by factors such as water temperature, which should ideally be maintained between 18-24°C (64-75°F) in aquarium settings.