红白锦鲤 hóng bái jǐn lǐ

红白锦鲤是锦鲤的代表品种。常言道：“锦鲤始于红白而终于红白”，意思是说初学者刚看到红白觉得美妙非凡，于是开始饲养，但过了一段时间后又觉得其它品种也不错，如浅黄、秋翠、九纹龙、黄金等，但随着对锦鲤了解的不断深入，最后还是觉得红白最好。 最早发现具红白二种颜色的鲤鱼是一八零四年至一八二九年间。当初由真鲤突然变异产生头部全红的“红脸鲤”，再由其产生的白色鲤与绯鲤交配，产生腹部有红色斑纹的白鲤，之后逐渐改良成背部有红斑的锦鲤。

百度翻译提供：

Red and white koi is the representative variety of Koi. As the saying goes, "the koi starts from red and white and ends in red and white", which means that beginners feel wonderful when they see red and white, so they start to raise them. But after a period of time, they feel that other varieties are also good, such as light yellow, autumn green, nine striped dragon, gold, etc. but with the deepening of the understanding of the koi, they still feel that red and white are the best. The first red and white carp was discovered between 1804 and 1829. At first, the real carp suddenly mutated into a "red faced carp" with a red head, and then the white carp produced by it mated with the Fei carp to produce a white carp with red stripes on the abdomen, and then gradually improved into a koi with red spots on the back.