The most obvious feature of this goldfish is the hump between the dorsal fin and the head.
The body is relatively short and deep, the dorsal fin is tall, and the elongated caudal fin is divided to form a double tail.
Ryukins are generally brightly colored, with a deep-red and white coloration being the preferred form.
The markings on these goldfish should be symmetrical as far as possible. Chocolate (coppery) individuals are often recognized as a separate form, the
Tetsuonaga, especially in Japan.Tetsuonagas have a reputation for both hardiness and the quality of their fin shape, so they are useful in Ryukin breeding.
The Ryukin is named after Japan’s Ryukyu Islands, where the ancestors of this goldfish were first introduced from China.
Calico Ryukin Nacreous patterning isnot common in doubletailed goldfish, but is seen in the Ryukin. Calico Ryukins often have bold, contrasting markings.
Are ryukin goldfish aggressive?
Goldfish may also develop aggressive behavior when a new fish is introduced into the tank and disrupts the “balance” of the social hierarchy. Some breeds of fish can be more aggressive than others. The Ryukin goldfish has a more pointed head shape than other varieties, equipping them to more effectively pick on others.
How long do ryukin goldfish live?
The Ryukin Goldfish is a very beautiful fancy goldfish variety with a characteristic hump in the shoulder region. Average size is 6″ (15 cm) but can reach up to 10″ (25 cm) in a truly well-maintained tank or pond. The average goldfish lifespan is 10 – 15 years, but can live up to 20 years or more when well maintained.
How big do ryukin goldfish get?
Size of fish – inches: 6.0 inches (15.24 cm) – Average size is 6″ (15 cm), but they have been reported to reach 10″ (25 cm) in an exceedingly well-maintained tank or pond.
How long does it take for goldfish to reach full size?
Depending on his type and his environment, goldfish have the capacity to grow anywhere from around 6 to 15 inches within a very short period of time. If they are kept in tiny aquariums or little bowls, they will still grow, but much more slowly.
Are ryukin goldfish Hardy?
All goldfish are members of the carp group and are generally quite hardy. The Ryukin Goldfish will do well in a tank of 30 gallons of water or more with a fine gravel bottom and hardy, cold water plants.
Can ryukin goldfish live in ponds?
All goldfish are members of the carp group and are generally quite hardy. The Oranda will do well in a pond of 250 gallons of water or more with plenty of hardy, cold water plants. Pond owners in Zone 4 or colder should winter them indoors. … Orandas are slow-moving fish that should be kept with other fancy goldfish.
How do you know what gender your goldfish is?
To identify a female goldfish, look for a rounder, thicker body shape. Females may also a bulge on one side as breeding season approaches, and their vent, or anal opening, may protrude slightly. Male goldfish often have a thinner, more streamlined body shape than females, with a concave vent and a midline ridge.
Learn more about different types of goldfish