@MBnVA,
Unless your in hydro I'd forget about ph water untill you see any problems or.you ph of tap.water is 8 or above as the soil will buffer the water .
Soil growing such be easy water when your pots get light and feed around once or twice depending on how good your soil is .if you've amended the soil only feed once you see some leafs lightening .
Don't forget unlike hydro it can take a good 7days before you see any changes you make
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