also known as the blue and gold damsel or Abudefduf vaigiensis, is a small, brightly colored fish found in the warm waters of the Indo-Pacific region. It belongs to the Pomacentridae family, which includes other damselfishes, clownfishes, and chromises.

Indo-Pacific sergeants are typically 8-12 centimeters in length and have a compressed, oval-shaped body with a pointed snout and forked tail. They have bright blue bodies with gold stripes that run vertically along their sides. Their fins are also brightly colored, with yellow and blue hues.

These fish are found in a wide range of marine habitats, including coral reefs, rocky shores, and lagoons, and are often seen in large schools. They are omnivorous and feed on a variety of small marine invertebrates and algae.

Indo-Pacific sergeants have a relatively peaceful social behavior and can be kept in groups in an aquarium setting. They are generally hardy and easy to care for, making them a popular choice for beginner fishkeepers. However, it is important to note that they can become aggressive towards other smaller fish and may need to be kept with similarly sized or larger tank mates.

In terms of fashion, the Indo-Pacific sergeant is a popular fish for aquarium hobbyists due to its bright colors and ease of care. They are often used to add color and movement to reef tanks and are also kept in fish-only tanks. Additionally, their striking blue and gold coloration makes them a popular choice for scientific and educational displays.

Overall, the Indo-Pacific sergeant is a beautiful and fascinating fish that is a favorite among aquarium hobbyists. Their vibrant colors, peaceful social behavior, and ease of care make them a great addition to any reef or fish-only aquarium.