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Re: Plants tabs, PO4--- and Miracle Grow
- To: Aquatic-Plants at actwin_com
- Subject: Re: Plants tabs, PO4--- and Miracle Grow
- From: Paul Sears <psears at nrn1_NRCan.gc.ca>
- Date: Fri, 11 Jan 2002 09:19:56 -0500 (EST)
- In-Reply-To: <200201101653.g0AGrXE16521 at actwin_com> from "Aquatic Plants Digest" at Jan 10, 2002 11:53:33 AM
>
> >>Why bother with ammonium sulfate. Why not use liquid ammonia (from grocery
> store). I believe it becomes NH4+ at pH in our tanks. Chemists, please
> comment.<<
I missed this one the first time around! I presume you mean the
concentrated solution of ammonia in water ("880" ammonia). Liquid
ammonia boils at -33 C. If you add straight ammonia, as opposed to
a salt, you will tend to increase the pH. It's quite a strong base,
which is _why_ it is NH4+ (mostly) at usual tank pH. I would be
quite doubtful about adding NH4+ salts, and even more so about adding
ammonia solution. You would have to add _very_ small amounts.
--
Paul Sears Ottawa, Canada