What fish do you keep at home that is beautiful, cheap and long-lived?

Koi fish [1] is an advanced ornamental fish popular in the world today. It has the reputation of "a living gem in water" and "a work of art that can swim". Because of its low requirements for water quality, miscellaneous eating habits and easy reproduction, it is welcomed by people. Edit this paragraph of variety term "MUJI" is an ordinary koi fish that shines all over the body, but there is no pattern. However, the black-scaled Cyprinus carpio is also regarded as barren, and it is called "Pine Leaf Gold" in koi fish's photos (8 photos). Pine leaf gold is also called "Jinsongba", which is called "Jinsongba" in koi fish of "empty carp" system. According to legend, in the thirty-fifth year of Showa (1960), it was named "Songyejin" after the yellow female carp mated with the golden male carp, and later named after the valley village Acorus calamus. Koi fish is produced with red upper and lower abdomen, red head and fins, and reddish-brown pine leaves and golden body. But at the age of 2, he became black and became koi fish. In recent years, the common pine leaf gold is improved. The characteristic of pine leaf gold is that the body itself will glow, and the scales on the body have black spots like pine leaves. Although it is a golden variety, pine-leaf carp can't do it if the scales are in disorder. Aquarium once thought that the so-called beauty of juxtaposition of fish scales was the most wonderful thing of pine leaf carp. Jinsongye "Jinsongye" is another name of "Songyejin", which shows the golden characteristics of dark brown series, meaning golden pine leaves. People with strong muscle tension have a strong luster. There are all kinds of "golden pine leaves", whose white muscle tone is very strong and the color (golden yellow) is very weak, but in recent years, the golden pine leaves have been improved, and the bald ones are the mainstream, but perhaps they are too inclined to blow the color (golden yellow) to weaken the pine leaves. Silver pine branch "silver pine leaf" means silver (empty carp) plus pine leaf, and the beauty of silver pine leaf is exactly the same as that of golden pine leaf. The top of the head and back should be platinum-based, the pectoral fin should shine like a silver fan, and the dullness of the cover wheel should extend as far as possible to the abdomen to be considered as a high-grade product. German gold "German gold" is said to be a variety created by insect turtle Fukusakai in the thirty-third year of Showa (1958). Sakai mated the female German herring with its pectoral fin glowing with the male golden carp produced in Waishan Shi Lang, and produced German gold. Originally, the prototype of Dejin was bright yellow, but compared with the golden carp, it was called "Dejin". German gold is based on mirror carp, so it is wonderful to arrange large scales on the back and abdomen, but in the pool water, its scale-free place is particularly luminous. On the other hand, German yellow, a kind of leather carp with degenerated scales, is like a metal processed product, but it shines in any case, and its taste is slightly inferior to that of mirror carp. Rows of "armored carp", no matter how clever, still have no appreciation value. Aquarium.com once thought that German carp paid attention to the beauty of scales. The carp playing "Dejin" and "Mountain Blowing Gold" is called "Deshan Blowing". Blowing mountain flower is the national flower of Tang Di, which means golden yellow. German rat gold, a German species of rat gray gold, is called German rat gold, which is used as a parent carp when producing mutant carp. The German platinum carp planted in Germany is called German platinum. Most of the German orange golden orange golden carp belong to German species. Lohan Silver Lohan Black German gold carp produced from German gold is called "Lohan Silver", and its silvery luster is called "Silver Lohan Silver". It appeared in the Showa 1930s (1955), and its back top and pectoral fins exude a dark brown luster, just like an antique carved Buddha statue. In the 33rd year of Showa (1958), the female carp of Kurosawa in Nanheqing crossed with the male carp of German tricolor with "Golden Kabuto", which was excellent in body color, but it could not be realized in the end and was rarely seen in recent years. Picking the seedlings of German herring in German gold will produce many German herring. But most of them are dark and inferior goods, and they are not worthy of being called brilliant arhats. They are just eliminated and abandoned as inferior carp during screening. Pine leaf golden carp is German pine leaf golden carp, and German pine leaf is another name. The German fish scales on the back are pine-leaf-shaped, and each fish scale floats on light black. Because the fish scale is large, it looks like a bold impression. German mirror carp (spiegel katpfen) is the first condition for beautiful scales. If there are redundant scales or large-scale overlaps, even if the brilliance is no matter how good, its appreciation value will be reduced. In other words, compared with the German species, the golden species has stronger heritability, and when the carp strain (Japanese native strain) mates with the German species, the large scales unique to the German species are easy to disappear, even if they appear, they will lose their color, and most of them will be the same color as the muscles or become Lude Capden. Koi fish, the morphological feature of this section, originated in Central Asia and later spread to China. Varieties that meet the public aesthetic standards were selected by the court technicians in ancient China according to the method of breeding goldfish and crucian carp. They were introduced to Japan in modern times and carried forward in Japan. Japan has cultivated many excellent varieties, so many koi fish are named after Japan. It is the national fish of Japan, and is known as "the living gem in water" and "the king of ornamental fish". Koi fish has a strong physique, bright colors, changeable patterns and beautiful swimming posture, which is of great ornamental and breeding value. Its body length can reach 1- 1.5m, and its life span is extremely long. Can live 60-70 years (according to legend, koi fish is 200 years old), which means good luck and is said to bring good luck to his master. It is a well-known feng shui fish and ornamental pet. The living environment in this section is koi fish, which is gentle, gregarious, easy to raise and adaptable to water temperature. It can survive in the water temperature environment of 5-30℃, and the growth water temperature is 2 1-27℃. Omnivorous koi fish is a large individual, with a body length of 1m and a weight of over 10kg. Sexual maturity is 2-3 years old. Long life, about 70 years on average. Laying eggs from April to May every year. Besides the water temperature and the richness of food will affect the growth rate of koi fish, the growth of female and male fish is also very different. Koi fish's body length is over 90cm, which can be said to be quite large. However, a koi fish of Pinus densiflora with a body length of 125cm appeared at a Japanese oral judging meeting, and what's more, a super giant carp with a body length of 150cm and a weight of 45kg was recorded. Koi fish's life span is very long, generally up to 70 years. According to records, there is a Japanese flying carp named "Hanako", which was born in 175 1 and died in1977 * * and lived for 226 years. The fish is 77 cm long and weighs 9 kg, so it can be called "the best fish in koi fish". The age of koi fish, like most fish, determines the number of scales, which indicates the age of koi fish. The ancestor of koi fish is our common edible carp. Carp originated in Central Asia, and later spread to China, where it thrived. Koi fish (Figure 2) The breeding history of koi fish is more than 1000 years, and its species are more than 1000. There is little difference in body shape among varieties in koi fish, which is mainly classified according to the difference of body color and stain shape. It is red. White and yellow. Blue and purple. Nidhogg. Silver and other colors, the plaque on the body is almost not exactly the same. So why is koi fish more expensive than gold now? The reason is that because of economic support, how many provinces does Lan City have? However, it supports the value of all rare varieties on the market. However, with the economic downturn in Taiwan Province Province, Lanzhou City collapsed, leaving no room for resistance. On the most expensive day in history, Peng Peony dropped from 6 million/seedling to 654.38+ 10,000/pot. Then there are so many orchids in the world? Why not support it? So we can foresee the future of koi fish. He used to be a favored son of heaven and could only be raised by the court. Later, it inevitably became the consumer goods of the public. Once cheaper than gold, the dust must have settled in the end. In the political era of Japan (1804~ 1829), farmers screened and improved the mutant carp in 20 towns and villages near the central area of Niigata Prefecture, and cultivated light with net markings such as light yellow. During the Tianbao period (1830), red and white carp with broken lines and white background were cultivated. In the sixth year of Dazheng (19 17), the real and primitive red and white carp was cultivated by Jingguang National Collection. Later, through the improvement of Takano Asakura and Hoshino Taro, the quality of red and white carp was greatly improved. Later, in the fifteenth year of Showa (1940), the strains of Youmen and Menjiro were cultivated in Youmen, Hoshino. In the 27th year of Showa (1952), Sato Wuping cultivated Wuping Taixi. In the 16th year of Showa (194 1), Hiroi Yuki cultivated the Miwu Zuo Wei family. Koi fish (Figure 3) However, these are the original species of very light red substances. At present, the most famous red-and-white fish and koi fish are Sakutaro in the 29th year of Showa (1954), Qiaotaro in Kawakami in the 35th year of Showa (1960) and Zhu Xian, Wanzang and Datian in the 45th year of Showa (1970). After years of cultivation and screening by Japanese farmers, koi fish has reached its peak, and koi fish has become Japan's national fish, and it has been promoted to all parts of the world as a goodwill ambassador through diplomatic and non-governmental exchanges. Every year from 10 to 12, koi fish fans from all over the world gather here to buy their favorite koi fish and pay tribute to the world-famous birthplace of "japanese koi". Koi fish, also known as the "God Fish" in Japan, symbolizes auspiciousness and happiness. The Japanese regard koi fish as a work of art and have the reputation of "living gem" in the water, and have cultivated valuable varieties with high ornamental value, such as Yellow Spot, Taisho Tricolor and Showa Tricolor. Carp can be used as medicine to treat diseases, and has the effects of invigorating spleen and regulating stomach, diuresis, eliminating edema, relieving cough and asthma, and promoting milk secretion. Meat can be used to treat portal cirrhosis, chronic nephritis, cough, asthma, puerperal hypogalactia, irregular menstruation or metrorrhagia. Blood can cure mouth and eye deviation; Bile can cure pinkeye and suppurative otitis media. Japanese often raise koi fish in their own yard.