Thread: PPM for aeroponics
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Old 07-17-2001, 12:44 PM   #1
scooby250
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Post PPM for aeroponics
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I just got a TDS meter for my aerospring system. Everything was going great i just wanted to have more control over nutrients. I was wondering what a good range for PPM is i heard somewhere between 300 and 400 is good, im at 363 right now.
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