[Akai-San]

Has there been any discussion on the relationship of koi growth rates and the expected lifespan of a koi. I have read stories about 100+ year old carp and 50 year old koi but at the older ages, what kind of activity do they exhibit?

Also more in line with my post title...Do the growth rates of koi affect the lifespan of a koi? (Being that water conditions are consistantly of good quality) I understand depending on where you live and how the seasonal climate is in your country/city may provide an advantage or disadvantage for growing koi all year long. Lucky us we live in beautiful Hawaii. We do not experience much of a lull in temperatures for growing koi. Speaking with MikeT has openned my eyes to differences in the ability to be able to grow koi all year long. Having Nisai fish go to 24"+ while less fortunate keepers (who work with seasons) maintain Nisai at 12"-16"(I'm sure this varies). Is this faster growth rate GOOD or BAD for the koi? I know that Momotaro caters to pumping up his growth rates with similar methods of growing koi all year long with his lightly stock indoor ponds and awesome drinking quality water...Does anyone have any insights on faster growth rates, larger koi, and the expected life expectancies of these koi? Thanks.