The many varieties of koi boast distinctive features that help you to tell them apart. ©M_MUC1968/Shutterstock.com Nishikigoi, better known as koi fish, are a well ...

Koi fish are colorful patterned common carp that are now celebrated in annual koi shows and kept in ponds all over the world. Some are worth millions.

Nishikigoi, better known as koi fish, are a well-known variety of the common carp. They are bright red and white and revered for their vibrance and grace. Even other animals, including their predators ...