Koi ponds
Koi ponds originated in Japan. Now, however, they are
increasingly common in the United States. At one point you could only
see these ponds on Lifestyles of the Rich and Famous are at fancy Japanese
restaurants, but Koi ponds are becoming increasingly more common and
less expensive.
Still, nurturing and raising fish in Koi ponds is a difficult task.
A female lays a tremendous amount of eggs and the males fertilize them.
The hard part is raising the off spring which are called "fry."
If you are culturing fish in your Koi ponds, you will have a hard time
raising high caliber fish. Koi produce a tremendous number of unrecognizable
and even genetically defective fry in a spawning. The unwanted offspring
must be vetted by the breeder.