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[email protected] 29-03-2007 07:55 AM

NO3 and NH4 toxicity
 
http://afs.allenpress.com/perlserv/?...F%3E2.0.CO%3B2

http://www.ncbi.nlm.nih.gov/entrez/q...&dopt=Citation

http://md1.csa.com/partners/viewreco...etc ookie=yes

Seems that very high levels of NO3 from KNO3 would be required to harm
fish but very very small amounts of NH4.

So is providing more fish a better way to add N vs KNO3?

Regards,
Tom Barr


Altum[_3_] 29-03-2007 08:51 AM

NO3 and NH4 toxicity
 
wrote:
http://afs.allenpress.com/perlserv/?...F%3E2.0.CO%3B2

http://www.ncbi.nlm.nih.gov/entrez/q...&dopt=Citation

http://md1.csa.com/partners/viewreco...etc ookie=yes

Seems that very high levels of NO3 from KNO3 would be required to harm
fish but very very small amounts of NH4.

So is providing more fish a better way to add N vs KNO3?


I think the limited oxygen exchange capacity and high oxygen demand of
planted tanks at night is an even better argument for using KNO3 for
nitrogen-hungry plants rather than overstocking.

--
My other fish and pond forum is:
http://groups.google.com/group/The-Freshwater-Aquarium
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