And just like prized dog breeds, Japanese people take ... breeding koi is a lot harder. A single koi can give birth to hundreds of thousands of baby fish at a time. Latest videos A triangle ...

This fish has a single red spot on its ... should know that Doitsu is a category of koi, and that subspecies exist within it.

Japanese breeders created this domesticated ... there should be a minimum of 250 gallons of water per single adult Koi fish. These beautiful creatures grow up to three feet long, depending on ...