Tropical fish refer to ornamental fish native to tropical or subtropical rivers, lakes, and seas. Examples include red swordtails, blue starfish, black mollies, pearl gouramis, and angelfish. These small, uniquely shaped, and beautifully colored fish have won the hearts of millions of enthusiasts worldwide. The keeping of tropical fish originated in Germany.
Around 1840, a German man accidentally discovered several beautiful tropical fish in a river. He took them home and kept them in glass containers, adding aquatic plants, sand, and pebbles to the containers. The result looked like a scene from a natural lake, which aroused the interest of his friends and neighbors.
In 1923, after the German scholar Bader wrote his monograph on keeping tropical fish, "Freshwater Fish for Aquariums," the number of people keeping tropical fish gradually increased. At that time, Europeans liked to place beautiful tropical fish in aquariums on the dining table at large banquets to enhance the dining experience. Later, tropical fish became decorative items for living rooms and bedrooms. Initially, people often crossbred different types of fish, gradually creating some new varieties.
Currently, there are over 2,000 species of tropical fish farmed worldwide. my country began introducing tropical fish in the 1930s.
