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1400 Fish Tank Main Fish Acquisition Waltz of the Flowers-Butterfly Koi Butterfly Koi Scientific Name: Cyprinus carpio English Name:Butterfly koi ------------------------------- Longfin koi are collectively called Butterfly Koi. They are distinguished by various names depending on body color, color scheme, and pattern: platinum butterfly for white gold, silver-colored with shiny scales as Silver Lin Platinum Butterfly, black as black butterfly, golden as gold butterfly, and red and white butterfly, Taisho Tricolor Butterfly, Soha Tricolor Butterfly, Emperor Butterfly, and Peacock Butterfly. Among them, the koi developed by crossbreeding with the smelt is called the Doitsu Butterflyfly Koi, and it is characterized by large scales and has the same characteristics as the smelt, with the scales not covering the entire body. Butterfly (longfin) is rare. Especially in the wild! You can see longfin in the wild, but it is considerably rarer than the common koi. If the fin is too large, it is difficult to properly send power to the entire fin, making it difficult to gain propulsion, which in turn hinders fast swimming. If it is slow, it will be pushed back in the fight for food, which is most important for survival, and it will not help in reproduction, and it will be disadvantageous in many ways. I think that is why the population is not maintained in large numbers. This phenomenon can be seen in many other fish species. A good example is guppies. As male guppies grow, their tails continue to grow, but female guppies do not exceed a certain size and maintain it. If the male's tail grows as he grows, he will not be able to keep up with the female's swimming speed, and will not be able to properly fertilize them. So, for breeding, young males with less developed tail fins are preferred. It is truly fantastic to see butterfly koi swimming leisurely in the fish tank. It feels like they are dancing in a long dress! That is why I chose Waltz of the Flowers as the BGM. Enjoy butterfly koi with Tchaikovsky's music. Thank you. BGM info. ------------------------------- Waltz of the Flowers - Tchaikovsky