Zëbulon wrote:

No Jan. I will *not* take offense if a food your fish thrived on left me
with several hundred undersized fry. It just proves to me one more time
how
unreliable (and sometimes deadly) *research* can be and often is.

Undersized by what standard?

One of the oft-stated problems with catfish & trout food is that it is
designed to cause a fish to put on weight as fast as possible, so that it
can be harvested as fast as possible.

Koi are not intended for harvesting. Your comparisons, while qualifying as
research, are not well-designed research. Koi have life spans up to a
century. If the ones fed on high-priced food live an average of 80 years,
and the ones fed on catfish chow average only 20 years, then it's not as
good - but it'll be a long time before you can show your catfish chow is as
good as high-priced food for the long term.
--
derek