techrons78
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- Nov 8, 2014
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So I have never used one..I just ordered it with the ph meter also...anyways i am trying to figure out how its done correctly..how do know if you have the right ppm...ive read it helps you tell if your plants are being feed to much or to little...can anyone help me out eith this..im usuing ffof eith coco coir..with gh nute...cal mag silica. ..under 1220 w of LED ..thank you in advance