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Re: [APD] Substrate vs the water column

At 07:54 PM 12/21/2004 -0800, you wrote:
>I just found several more references. These precisely and directly support
>my contentions about water column being the source of nutrients when
>adequate contention is present there.

I don't doubt that, but aren't roots more efficient that leaves at doing this?
That's all roots do and there's typically as much of them as there are leaves.

Roots can sit in such nutrient rich muck it would turn a tank green overnight
if there was that much fertilizer in the water column.

I'm being rather crypt-centric what I say this. I'm sure it doesn't matter
for, say, Egeria najas...

But, why do we care? Either work, both, IMO work better than either. YMMV.


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