In this classic Jason runs through the basics of growing when monitoring you PH or PMM levels for optimal results. What does all this TDS and PH really mean?
ive been watching ur videos for five years love to c u back
2011 Back to Grow Basics PPM=TDS + PH What?
Are you over 21 years of age?
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ive been watching ur videos for five years love to c u back
2011 Back to Grow Basics PPM=TDS + PH What?