Koi fish is an ornamental fish with good quality and delicious taste. Known as "lucky fish", "Feng Shui fish", "living gem in water" and "king of ornamental fish". Koi fish is also known as "rich fish" and "noble mermaid" because of its bright colors, such as peony in water.
Koi fish is regarded as a symbol of peace and friendship. It not only gives people beautiful enjoyment, but also implies auspiciousness, joy, prosperity and happiness, so it is deeply loved by people.