The Nanjing is a goldfish characterized by its lack of a dorsal fin and round belly like the Ranchu, but without a head mass. In this article, I would like to explain in detail the characteristics of the Nanjing and how to keep it.
What is Nanjing?
The Nanjing is a goldfish characterized by the lack of a dorsal fin and a round belly like the Ranchu, but without a head mass.Another characteristic of the Nankin is that many individuals have a white body coloration compared to other goldfish. Currently, the Nankin is designated as a natural treasure by Shimane Prefecture, and like the Tosa goldfish, which is designated as a natural treasure by Kochi Prefecture, it is a goldfish born in Japan. Therefore, the Nankin is a valuable goldfish that is not bred throughout Japan, but is kept in some areas such as the Izumo region (Shimane Prefecture).
蘭鋳はオランダ獅子頭などと同じように頭に発達した肉瘤を持つ金魚なのですが、他の金魚と違い背びれがないのが特徴な金魚です。今回は、蘭鋳の特徴と飼い方を詳しく説明していきたいと思います。 蘭鋳とは 蘭鋳（ランチュウ）は、[…]
Origin of Nanjing
Although the birth process of Nankin is still unclear today, it is known to have existed in the mid-Edo period, as it is said to have been the favorite goldfish of Lord Matsudaira Fumai (Matsudaira Jirigo), then lord of the Matsue domain (around present-day Shimane Prefecture), in the Edo period (1603-1868). In the Edo period, the words "Dutch" and "Namban" were sometimes attached to rare items. Therefore, the name "Nankyo" was given to the goldfish (Nankyo), which was rare at that time, to mean that it came from the country of the Southern Barbarians (Kyo).It is said that Ranchu and Nanking were originally born in the process of eliminating Marco. The reason I used the expression "it is said" is because there is an opinion that Nanjing was born from Marco and Ranchu was born from Nanjing (Marco → Nanjing → Ranchu). Currently, the opinion that both Ranchu and Nanking were born from Marco (Marco → Nanking and Marco → Ranchu) is the prevailing opinion. This is because the relationship between Nanking and Ranchu and how Nanking came to be are still unknown, so it is only speculation.
Many people think that goldfish are the goldfish that you see at fairs and festivals in the summer, and that there are many different kinds of goldfish. And it is no exaggeration to say that each type of goldfish has its own characteristics, and that is the best part about goldfish [...]
Things to do in Nanjing
The way to enjoy Nankin is to balance the appearance of the head, which does not produce a mass of flesh unlike Ranchu, and the abdomen, which is large without a dorsal fin. If you want to enjoy them, I recommend viewing them from the side (side view) in an aquarium.By viewing it from the side, you can enjoy Nanjing's unique body shape and other features. If you want to see the white body color of Nanjing, it is recommended to view it from above in a pot or other container rather than from the side. By viewing from the top, the white scales shine brightly and beautifully when exposed to sunlight, and the difference between the white and red parts makes each color stand out even more.
Points to keep in mind when mixing swimmers
When mixing goldfish with other goldfish and other species, there is sometimes uncertainty as to what species is good and what species is not. First,There is no general prohibition against this or that when mixing goldfish with other species.Therefore, depending on the personality and environment of the goldfish you keep, even species that are said to be bad for each other may get along well with each other. However, there is also the matter of compatibility between goldfish. If you put incompatible goldfish together, there is a high possibility that they will fight or that only one of them will monopolize the food. However, as explained in the beginning, there is no prohibition for goldfish, so if you want to mix them, it may be OK to do so. Now, let us explain which goldfish are compatible with Japanese goldfish and which are not.
Compatible goldfish
Goldfish that are most compatible with nankin are ranchu-type goldfish, such as Ranchu and Edonishiki.Since the Nankin breed is a very poor swimmer, we recommend a Ranchu-type goldfish, which is also a poor swimmer, because it will be less stressed by being chased by other goldfish and being eaten by other goldfish before it can feed.
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About Ranchu Type
Incompatible goldfish
Goldfish that are incompatible with Nankin are Japanese goldfish of the Wagane type, such as Wakin (Japanese goldfish) and Comet (Japanese goldfish).Many types of Japanese goldfish are agile and grow large in a short period of time. If they are mixed with Japanese goldfish, be aware that Nankin may be eaten by other Japanese goldfish, such as food, and the difference in body size may cause them to move away from each other.
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Points to keep in mind when keeping Nanjing
The nankin is one of the very few species of goldfish that you will ever see. For this reason, there are few materials on breeding Nankin compared to Ranchu and other goldfish. Therefore, if you are interested in keeping Nankin, you will have to gain experience through trial and error, so we recommend that you reconsider your decision if you do not have much time to spend on goldfish.However, Nanjing has a different charm from Ranchu, so it is worth seeing at least once. Currently, Nankin are only bred in some areas such as the Izumo region of Shimane Prefecture, so you can try to contact the producer directly at your own risk.