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What to Do When a New Koi Lies on the Bottom of the Tank? China Great Wall Pet Expo Offers Advice
China Great Wall Pet Expo: Koi belong biologically to the family Cyprinidae. Worldwide there are more than 3,700 species in 210 genera of cyprinids. They are a high-grade ornamental fish popular around the world today, praised as "living gems in the water" and "swimming works of art." The largest producer of koi is Ja...