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#31
05-03-2003, 07:21 AM
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VF...1 Foot Deep Enough?
http://www.oase-uk.co.uk/expert/nahrstoff.html
NH4+ + OH = NH3 . H2O ammonium = ammonia (toxic) pH will determine how much of the dissolved ammonia is gas vs ammonium in water, lower pH results in ammonia being converted to ammonium ion. It is a lot like CO2 which dissolves in water which drives the pH down. low pH, OTOH makes metals more toxic. so it is a balancing act. Ingrid |
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