Tosakin
AdvancedDesignated natural monument from Izumo, Shimane. White body with red head is characteristic. Preserved by conservation societies.
The Nankin (also called Izumo Nankin) is a rare Japanese goldfish variety native to the Izumo region of Shimane Prefecture, where it has been designated a National Natural Monument. Its distinctive coloration—a white body with reddish coloring on the head, belly, and around the tail—sets it apart from the similar-looking Tancho, which is red only on the head. The Nankin has no dorsal fin, a compact egg-shaped body, and a fan-like tail that looks particularly elegant from above, making top-view observation in shallow basins the traditional method of appreciation. Historically treasured by samurai households and wealthy farmers in the Izumo region, the Nankin is today carefully preserved by dedicated enthusiast associations. It is extremely rare outside Japan and even within Japan, making it one of the most prized and sought-after heritage goldfish varieties.
Origin
Japan (Izumo region, Shimane Prefecture)
Lifespan
10-15 years
Size
10-15cm
Temperature
5〜30℃（適温18〜24℃）
Goldfish pellets
Shallow top-viewing container ideal
15-25°C
Obtain through conservation societies
Red confined to head is ideal
Extremely difficult to obtain. Participation in conservation encouraged
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
The ideal temperature for Nankin Goldfish is 5〜30℃（適温18〜24℃）. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Nankin Goldfish is 10-15 years. With proper care and nutrition, they can live a long and healthy life.
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Nankin Goldfish typically reaches 10-15cm as an adult. Size may vary depending on care conditions and individual genetics.
Nankin Goldfish feeds on: Goldfish pellets. Aim for a balanced diet with appropriate feeding frequency.
The price of Nankin Goldfish varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
