条件筛选
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Koi selection methods from back in the day: choose based on body shape and color
Koi selection regarding body shape and color: the fish's back should be straight, the body balanced left and right, the swimming posture steady and upright, and the body robust and powerful. The shape of the cheeks and the position of the mouth should be well-proportioned, without crookedness, full at both ends and not sunken, and all fins should be symmetrical and complete, moving flexibly when swimming....