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RE: Aquatic Plants Digest V3 #467
- To: <Aquatic-Plants at actwin_com>
- Subject: RE: Aquatic Plants Digest V3 #467
- From: "Frank I. Reiter" <FIR at istar_ca>
- Date: Mon, 24 Aug 1998 08:17:01 -0400
- Importance: Normal
- In-Reply-To: <199808240351.XAA16818 at acme_actwin.com>
> From: Anthony Ciarochi <Anthony.Ciarochi at eng_Sun.COM>
> Subject: Don't believe everything you read...?
>
[...]
> 2. Aquatic plants are only able to absorb nitrogen in the form of
> ammonium, and
> are unable to metabolize either nitrite OR NITRATE (!). The book
> goes on to
> state that utilization of nitrate is ONLY characteristic of
> terrestrial plant
> life. It doesn't say anything about a plant's ability to
> metabolize ammonia
> (vs. ammonium), other than saying to keep pH under 7.0 so that
> you never have
> any.
[...]
>
> Although I am sceptical of all of these claims, I can't help but
> wonder if #2
> might explain why I have a tank full of growing plants, but can't
> seem to keep my nitrate below 30 ppm.
#2 is the one I would most confidently dispute. I add nitrate to my tanks
regularly or they fall to 0.0 ppm.
Frank.
-----
The very act of seeking sets something in motion to meet us;
something in the universe, or in the unconscious responds as if
to an invitation. - Jean Shinoda Bolen
http://home.istar.ca/~fir