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Re: Aquatic Plants Digest V4 #1023


I'm the worst chemist there is, and have a terrible time with
color matching too.  However, I think the very low level of ions
in your water is probably making that process even worse.  No
doubt somebody on the list can explain why, but I find, for example,
that it is impossible to get a pH reading on distilled water.


>I have a terrible time matching pH color to the color chart.  So that is
>probably one source of error.  Other potential sources?  Well, I have added
>3 things to the water:  the aforementioned 2 tsps of CaCO3 powder; 4 tsps 
>crushed coral that's sitting in my canister filter; and 5 ml of TMG.  But
>that's it.

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