|
Ray, I remember being amazed by the number of 'walking sticks', frogs and misc. invertebrates that came out of a mudpond pull of one of Shintaro mud ponds. I thought to myself " what a healthy pond and full of food items for the tosai held within". A great food chain I thought at the time. It was Toshio Sakai, upon hearing of my approval of such a system, who said " that is a very bad pond because the other living things compete for oxygen and other nutrients with the young koi.
A koi pond is an illusion- part nature but part a man made environment. It can not have a full and broad ecosystem because the fish, at 'the top of the chain' are out of balance with the rest of the chain. This is why a natural koi pond is an impossibility. It is just too small. But it does have the potential for all natural biological processes. So we need to exploit and control that potential.
The idea that a media should provide more than excess surface per square yard for beneficial bacteria ( of many species), is a marketing thing. It might warm the cockles of the heart to know that there is a potential zone for higher forms of invertebrate life, but in real terms, it is irrelevant. And worse, a burden on the limited resources of a closed system. - JR
|