In Japan and Hong Kong. Space = Money, only very very rich people can live in a big house. So, most of the people can only keep koi in a fish tank.
But suprisingly that koi keeper in Japan and Hong Kong do have the best skills to raise koi.
After you saw the photos, i know you people is going to say:
"This is cruel to the koi."
"Those Japanese and eastern people are sick, how can they keep koi in such a small space......etc."
But think about this:
Most of use have a big big fish pond compare to those people, but we still can't raise some koi better than those who only has a fish tank. Why???
Is there is something we should learn from them???
NB! LOOK AT THE NICE COLOUR OF THE KOI, THEY CAN ACHIEVE THIS COLOUR EVEN KEEPING THE KOI IN A FISH TANK.