Koi fish are not typically eaten in most Western countries, but they are sometimes consumed in certain Asian cultures, especially in Japan. However, the primary purpose of koi fish is for ornamental pond decoration rather than as a food source.
In Japan, they are more commonly used for decorative purposes in outdoor ponds and gardens. Koi fish are bred for their vibrant colors and unique patterns, making them prized possessions for many fish enthusiasts.
It's essential to note that if you're considering eating koi fish, you should always check local regulations and cultural norms regarding the consumption of these fish. Additionally, consuming koi from decorative ponds may not be safe due to the potential presence of pollutants or chemicals used to treat the water. For these reasons, it's generally not recommended to eat koi fish.