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Re: Equilibrium, Ca and Mg levels

>This brings me to a question aimed at others who have used Equilibrium.  I
>live in Portland, where tap water is generally 0 GH.  On the Equilibrium
>instructions it says to raise GH of ten gallons by 1 degree GH, add 15g (1
>Tbsp.).  I was aiming for 3 GH and I have 25 gallons, so I added 7.5 Tbsp.
>A few days later I tested the water with a tetra hardness kit and got a
>measurement of 9 GH.  It struck me that the ratio of what I aimed for and
>what I tested at was the same as the ratio of Tsp. to Tbsp.  I was wondering
>if anyone had noticed anything like this.

Check that label again ;-) It says to raise GH by 1 _meq/L_ add 
15g/10 gallons. 1 meq/L is about 3 dH, so you aimed for 3 meq/L which 
is 9 dH (which is what your test showed).

-Greg Morin

Gregory Morin, Ph.D.  ~~~~~~~Research Director~~~~~~~~~~~~~~
Seachem Laboratories, Inc.      www.seachem.com     888-SEACHEM