Is Potassium not assimilated by plants ?
Then, it is merely a catalyst being in higher and higher concentration,
depending on water changes !?
Could anyone discuss this subject ?
The only K I add comes from TMG and little KH2PO4.
Nitrates come from Ca(NO3)2 and Mg(NO3)2...
P and N are stable from week to week but K is raising.
Thanks in advance !
Philippe
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