Goldfish originated in China, also known as golden crucian carp, which is similar to carp, but has no mouth whiskers. It is an ornamental fish evolved from crucian carp. There are many varieties of goldfish, and the colors are red, orange, purple, blue, ink, silvery white and five flowers. , divided into four strains: literary species, grass species, dragon species and egg species. 12 century, the genetic research of goldfish domestication began. After a long period of cultivation and continuous optimization of varieties, goldfish from all over the world are now directly or indirectly introduced from China.
Koi fish belongs to CYPRINIDAE in biology, and CYPRINIDAE is the largest family of all fishes, with more than 1400 species. It is a kind of advanced ornamental fish popular in the world today. It has the reputation of "living gem in water" and "swimming art". It is praised and loved by people because of its low requirements for water quality, miscellaneous eating habits and easy reproduction. 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- 1.5 meters.
Blood parrot is commonly known as the red god of wealth and the god of wealth fish. It has a bright red body, a plump figure and soft fins. The color is red, which is very pleasing. Adult15-20cm long, generous and oval. The body color of young fish is gray, and the adult fish is bloated and pink or blood red. Blood parrots are strong and eat almost anything, such as artificial bait, flakes, granules, red worms, bumper shrimp, water lice and so on. They are easy to feed because of their wide feeding habits and strong adaptability to water quality.
Peacock fish, also known as Cephalotaxus peacock and Cephalotaxus rainbow, is called "anchovy" and "torch" in some parts of Northeast China. It is a tropical fish, belonging to Cephalotaxus and Cephalotaxus, which is difficult to raise. Peacock fish is native to Venezuela, Barbados, northern Brazil and Guyana in South America, and is deeply loved by people because of its colorful body color and beautiful natural figure. Peacock fish is distributed in the lower reaches of rivers in some tropical areas, and its wild habitats are diverse, mainly distributed in freshwater basins and lakes and swamps. Peacock fish has strong reproductive ability and can tolerate polluted waters, so it has the reputation of "one million fish". Peacock fish has a mild temperament, can be mixed with moderate small and medium-sized tropical fish, and is lively and active at ordinary times, with a life span of about 1~2 years. Purebred guppy is divided into five major strains-grass tail, snake pattern, mosaic, dress, platinum and many independent phenotypes-Japanese blue, Mikarev, Laguerre and so on. Peacock fish is an omnivorous fish, and the adult fish is 3-5 cm long. Because of its strong adaptability to the environment, guppy can be seen almost all over the world. Its rich colors, colorful shapes and exuberant fertility are favored by tropical freshwater fish farmers.
Clown fish is a tropical saltwater fish, which is commonly known as Anemone of Sparidae. There are 28 known species, one from Sparus and the rest from Sparus. Clownfish are closely related to anemones, so they are also called anemones. Thorny anemones protect clown fish, and anemones eat the digested residue of clown fish, forming a mutually beneficial relationship. The maximum length of clownfish is 1 1cm. The total number of dorsal spines is10-12; The total number of soft strips on the back is 4-16; The total number of gluteal spines is 2; The total number of gluteal fin soft strips is 14- 15, and the young fish are all black with scales and concentrated in blue; There are white patches on the forehead and upper side; All the fins are black except the transparent pectoral fin and the soft dorsal fin. The geography and behavior of adult fish are changeable.