Aquarium Fish

Watanabe’s Angelfish

posted: 05/15/12
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Watanabe's Angelfish
Courtesy of Drs. Foster and Smith
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The Watanabe's Angelfish, also known as Watanabe's Lyretail Angelfish, is one of the few angelfish displaying sexual dimorphism. The female is an iridescent pale blue with a dark dorsal fin. The lower half of the body and anal fin are highlighted by long, horizontal dark stripes and one, horizontal yellow stripe extending toward the caudal fin. The male has no stripes other than a dark outline to the dorsal and anal fins.

The Watanabe's Angel requires a 100 gallon or larger tank, and is an ideal candidate for the deep-water reef aquarium. Acclimation will be facilitated by a dimly-lit tank. The tank should have multiple hiding places and live rock for grazing.

Watanabe's Angelfish are best housed as a male-female pair. Do not keep two males in the same tank as fighting will ensue. The Watanabe's Angelfish are hermaphroditic and difficult to breed.

Watanabe's Angelfish seem very susceptible to swimbladder damage.

A varied diet of meaty foods such as vitamin-enriched brine shrimp and finely-chopped crustacean flesh, Spirulina, marine algae, high-quality angelfish preparations, mysid or frozen shrimp, and other meaty items will provide good nutrition.

Fish Facts

Name: Watanabe's Angelfish (Genicanthus watanabei)

Family: Pomacanthidae

Range: Western, South Pacific

Size: Up to 6 inches

Diet: Omnivore

Tank Set-up: Marine: Coral or rock, plants

Reef Compatible: Yes

Tank Conditions: 72-78°F; sg 1.020-1.025; pH 8.1-8.4

Minimum Tank Capacity: 100 gallon

Light: Low

Temperament: Peaceful

Swimming Level: No specific level

Care Level: Difficult

Reproduction: Egg Scatterer

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