I don't use Miller's had a fear of the extra copper included.
Using CSM+B,for every 15g of CSM+B I add 3g of 10% Fe DTPA and nickel sulfate.
Been doing this for over 4 years and my pH is right about @ your levels.
What is your normal dose in ppm of Fe?
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Growing is not that difficult.
Last edited by Maryland Guppy; 05-05-2019 at 12:21 AM.