Description
he Halichoeres chrysus, commonly known as the yellow wrasse or canary wrasse, is a bright yellow fish with a thin, elongate body and a terminal mouth. Males and females exhibit different color patterns and markings, particularly on the dorsal fin. Juvenile and immature females have two black spots on their dorsal fin, while mature males typically have only one.
Detailed Description:
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Overall Appearance:
The fish is predominantly bright yellow with variations in color based on age and sex.
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Head and Thorax:
The head and thorax are yellow-orange, with irregular pale green bands on the head.
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Dorsal Fin:
Males have a prominent black spot, often rimmed with white, at the beginning of the dorsal fin. Smaller males may have a second spot on the soft dorsal fin. Mature females also have a second black spot on the middle of the dorsal fin, and juveniles may have a third blackish spot near the tail.
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Other Features:
A small spot is also present behind the eye. The tail fins are transparent.
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Size:
This species can grow up to 12 cm in length.
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Habitat:
They are found in tropical Indo-Pacific regions, often in reef environments with sand and rubble.
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Aquarium Keeping:
Yellow wrasses are popular in the aquarium trade, known for their vibrant color and ability to control pests like flatworms. They require a tank of at least 50 gallons, a sandy substrate, and good water quality.
