Goldfish

Carassius auratus

The goldfish (Carassius auratus) is a small freshwater fish belonging to the family Cyprinidae and is one of the most popular aquarium pets worldwide. Native to East Asia, goldfish have been selectively bred for centuries, resulting in a wide variety of colors, shapes, and fin configurations. Typically, they are recognized for their bright orange or golden scales, though they can also appear in shades of white, yellow, red, brown, and black.

Adult goldfish can range in size from about 1 to 2 inches in domestic aquariums to over a foot in ponds or larger tanks. They have a relatively long lifespan, often living up to 10 to 15 years with proper care, although some have been known to survive for over 20 years. Goldfish are hardy, adaptable, and can thrive in a range of environmental conditions, which contributes to their popularity.

Social animals by nature, goldfish enjoy the company of other goldfish and should be kept in groups to mimic their natural social structure. They are omnivorous, with a diet that can include commercial flake or pellet foods, as well as occasional treats of vegetables and live prey like brine shrimp. Known for their curious and active nature, goldfish often engage in exploratory behavior and can recognize and react to their owners over time, making them an engaging choice for aquarists.