Ryukin Goldfish Care Guide

Carassius auratus var. Ryukin · Freshwater Fish

Ryukin Goldfish
AI-generated illustration of Ryukin Goldfish
Temperature
65-75°F
pH
7.0-8.4
Adult size
~7.9″ (20 cm)
Suggested tank
40+ gal
Origin
Japan domestic goldfish variety
Family
Cyprinidae

What Ryukin Goldfish look like

Ryukins are deep-bodied fancy goldfish with a distinctive high shoulder hump behind the head. They have an upright dorsal fin, paired double tail, and normal eyes.

Behavior & temperament

Ryukins are active for fancy goldfish and can be pushier at feeding time than delicate varieties. Keep with similarly robust fancy goldfish, not streamlined pond types.

Diet & feeding

Ryukin Goldfish are omnivorous fancy goldfish. Feed sinking goldfish pellets or gel food, blanched greens, daphnia, brine shrimp, and occasional bloodworms. Portion control and clean water are important for the deep body shape.

Behind the name

Ryukin is linked to the Ryukyu Islands and the variety's route into Japan.

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Ryukin Goldfish?

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