In fact, the Koi is a common Carp (Cyprinus carpio) that has been severely australian email database culled over time for color and pattern. Contrary to popular belief, the Koi is still a common Carp. All that is needed to prove this is allowing a group of carp to breed with each other at will for several generations. The natural and original color of these fish will reappear by the second or the third generation. Check out also how to catch wild koi fish Goldfish Vs Koi Goldfish are not as large as Koi.

of different shapes, and their fins and tails can be put together in several diverse configurations. Koi share a universal body shape, but have a wider variety of body colors and patterns than the common Goldfish. Koi also have a slender barbell on their lip that resembles a whisker. Sterile Offspring Even though Goldfish and Koi may look somewhat similar, especially when they are young, remember that each comes from a different genus of the carp. Goldfish and Koi are able to interbreed, and will produce young fish, but these fish are always sterile.