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[APD] RE: NO3 uptake
Thanks for the reply Tom, much appreciated.
Happy water gardening everyone ;)
Kind Regards
Cameron James
Date: Mon, 19 Apr 2004 12:24:34 -0400
From: "Thomas Barr" <tcbiii at earthlink_net>
Subject: [APD] RE: NO3 uptake
To: aquatic-plants at actwin_com
I think a good max rate is perhaps 3-4ppm of NO3 for a planted tank. That's
a lot. But realize poor test kits, variability in plant species needs also
varies a great deal.
Hair grass might be alright at low(1-2ppm) NO3 while Eustralis and Mic
umbrosum might prefer higher(15-20ppm).
Also, you have to consider fish feeding and loading. With 12 Discus vs a
few otto's and shrimp will make a difference.
I think many folks that have gotten the CO2 down well and still are having
trouble fail to add enough NO3. I am thinking the test kits are poor, the
NO3 being test might be other non available forms of NO3, and that folks in
general should add a bit more NO3 if they are having trouble.
I'd have to say with CO2 enriched tank, the two biggest issues are CO2 and
then NO3. Almost always not enough and/or poor measurements.
Regards,
Tom Barr
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