Ryukin Goldfish - Tips and Characteristics

Quick Statistics - Ryukin
Country of Origin: China
Family: Cyprinidae
Scientific Name: Carassius auratus
Environment: Freshwater fish
Temperature: 65° - 78°F
Type: Twin Tail
Diet: Omnivore
Food: Pellets, flakes, live food, veggies and fruit
Adult Size: 4-8" (inches)
Lifespan: 10-15 years or more
Care Level: Easy
Temperament: Friendly and social

Take your time and enjoy the experience of watching one of the more rounded or egg-shaped fancy goldfish. This beautiful variety has been developed from the common Fantail, only difference is they have an extremely high back. It's name is Ryukin and has originally bred on the Ryukyu Islands, hence the name.

The body of the Ryukin is extraordinarily deep, almost as deep as the body is long, and it's high dorsal fin makes it look even higher. This gives them a more pointed appearance to the head, but they also have wider tail fins than the Fantail.

Very popular in the United States because its appearance and it's also an active fish. The Ryukin is available in many colors: orange-and-white, red, chocolate, green, blue, calico and other white-and-red or white-and-orange variants.

Ryukin is one of the twin-tails so it has a pair of tail fins, anal fins, pectoral fins and ventral fins.

A Ryukin goldfish will eat almost anything you feed it and quite a few other things such as aquarium plants. They can generally reach about 6-8 inches and if kept in a well maintained goldfish aquarium, their average lifespan is 10-15 years.

You also need to know...

Ryukin goldfish is one of the hardier species of goldfish. As long as you keep the water clean and feed it high quality food, it will be happy and healthy.

Being one of the egg-shaped body twin-tails, it's prone to the Swim Bladder disorder. Don't feed it food with high protein or mass fish flakes. Feeding a varied diet, keep the Ryukin from being constipated and flipping over. A rule of thumb for all goldfish.


Best tank mates for the Ryukin are other twin-tails like the Oranda, Fantail, Black Moor, Ranchu or Lionhead. However, keep in mind that it's an active fish and not recommended to keep with the Bubble Eye or Telescope Eye. Do not mix with single-tailed varieties like Common, Shubunkin or Comet.

Love to you,

Image credits to: PitiChampiDeParis @ Flickr.com