Re: Can someone check my math?

[Stephen Boulet <stepheb at comm_mot.com>]

> Aaron Ivers  wrote:
>
> > Subject: Can someone check my math?
> > I'm trying to introduce some more PO4 into my tank from AP's "pH Down", but
> > would like someone to check my calculations before I start.
> > The packaging says that it is 30% phosphoric acid.  I'm assuming this to be
> > H3PO4 (which should be about 97% PO4).
> Sounds good.
>
> > Is it acceptable to assume that 1 mL of this stuff then represents (1000 mg
> > x 97% x 30%) or 291 mg of PO4?
> Also sounds good.
>
> > Then throwing 1 mL into 291 liters of water should produce 1 mg/L of PO4,
> > right???
> Sounds good. A+ on the chemistry test ;-)!
>
> Jamie    <"\\\>< Aquatic plants, water chemistry, and cichlids
> Greenwood, SC     http://www.ais-gwd.com/~jjirons
>

Is there any consensus on the desired mg/L of PO4?

--Stephen, who must be crazy asking this list about a consensus on anything!  ;)

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