RE: NANFA-- Neutralizing Chlorine

Bruce Stallsmith (fundulus_at_hotmail.com)
Fri, 01 Jun 2001 11:12:36 -0400

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You're right about a range of unfortunate possibilities with splitting
ammonia from chlorine. Most of them arise in acidic waters, in which the
mass balance will shift to nasty NH3 from the relatively benign NH4+
(ammonium ion). I would argue that under most circumstances having stable,
untreated chlorine in your tank as chloramine is worse than liberating some
small amount of ammonia as the result of de-chlor treatments.

--Bruce Stallsmith
Huntsville, AL

>The krib has avery interesting series of posts on chlorine and chloramine.
>
>Depending on the concentration of chloramine in the water and the size of
>the water change, you could end up with some serious ammonia problems with
>thiosulfate + chloramine. 1 writer did the math and stated that a 30%
>water
>change with 1pmm di-chloro-chloramine (NH-Cl2) would result in a 0.2ppm
>ammonia concentration.

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