Few odd Questions Any help appreciated (pond/water couorse building/sturgeon) (UK)

I know not everyone follows this rule; I've just been told by the owner of a
major water garden designer store/installer that in order for them to thrive
(live their full life span, have less disease problems, etc) koi should be
in a larger pond.
Kirsten
"Benign Vanilla" wrote in message
...

"k conover" wrote in message
...
All I know is, 1,000 gallons is too small for Koi...
Kirsten
snip

A generally excepted ratio of Koi to Water is 1,000 gallons for the first
Koi and 100 gallons for each additional Koi. So 4 Koi, for example, should
be in 1300 gallons of water. The key thing to remember here, is that this
is
a rule thumb, and nothing more.

BV.