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Re: Dana's question/hardness
> I have a neutral ph of 7.0. I inject CO2, and add PMDD daily to obtain an iron
> reading of around 1.0ppm.
Dana, you should keep the levels down for Fe to around 0.1ppm or
less. Maybe the high Fe levels could be affecting something within
the plants. I know from experience that lots of Fe will help get you
lots of algae, so beware.
The dK and dH values look pretty normal.
Jamie Johnson "Keep your eyes on the stars
Chemist-Trace Metals and your feet on the ground"
Davis & Floyd, Inc. -Theodore Roosevelt
jjohnson at davisfloyd_com