Ryukin Goldfish ~ Carassius auratus

Description & Care Guide:
The Ryukin Goldfish is a beautiful and distinctive goldfish variety known for its deep, rounded body and high, arching back. This species features an elegant appearance, with its large, flowing fins and vibrant orange, red, or yellow coloration. Ryukins are friendly and active, making them a popular choice for ornamental ponds and indoor aquariums. They are relatively hardy and adaptable, though they require good water quality and ample space to thrive, especially given their size and energetic nature.

• Difficulty Level: Easy

• Tank Size: Minimum 30 gallons

• Food Requirements: Omnivorous – accepts goldfish pellets, flakes, and live or frozen foods such as daphnia, brine shrimp, and bloodworms

• Temperament: Peaceful, active, and social; best kept with other goldfish or similarly sized non-aggressive species

• Water Parameters: Prefers slightly acidic to neutral water (pH 6.5 - 7.5), temperatures between 65-75°F (18-24°C)

• Full Grown Size: 6-8 inches (15-20 cm)

Wild Habitats/Origins:
The Ryukin Goldfish, like all goldfish, is a domesticated variety of the wild carp Carassius auratus, native to East Asia. While goldfish are traditionally found in rivers, lakes, and ponds across China, Japan, and Korea, Ryukins were specifically bred in Japan for their unique shape and coloration. In the wild, goldfish prefer slow-moving or still waters with plenty of vegetation, though their domesticated form has adapted to a wide range of environments.

Fun Fact:
The Ryukin Goldfish is famous for its "humpback" shape, which gives it a distinctive, rounded body profile. This feature, combined with its flowing fins, has made it a favorite in ornamental fish breeding, especially for those seeking an eye-catching centerpiece for their aquarium or pond.