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>I sit here in San Francisco and regard this .1 ppm Fe PMDD claim
>that everyone seems to make as not reproducible (at least by me).
>Using Hach and LaMotte iron test kits, I find over and over again
>that I need to keep iron at just over a trace say, in the
>.2 - .3 ppm range, or else I'm in algae trouble.  I really wish
>we could get to the bottom of this issue.

Ooops!  I meant to write .02 -.03 ppm iron level range.  Sorry for further
confusing this confusing subject.  Thanks to Jonathan Kirschner for
pointing out the mistake.  

Regards, Steve Dixon