ppm = parts per million. The instructions on your meter should tell you how to convert the number you are seeing into ppm.

New clones don't like a lot of light. Back your lights way off until you start seeing healthy growth, then move them closer.

Try the house lights without the MH on, then try the MH without the house lights on, see if the lights still flicker. A flicker can often be a sign of a loose connection or loose bulb, so make sure all your connections are good and your bulbs are screwed in tight.

PC :smokin:
PharmaCan Reviewed by PharmaCan on . Now that Im hooked up better then Old Mc Donald Welcome to my stony little garden. Currently 4 clones, tons of room to expand and not even half way done unpacking the system I bought. I am running a 400W MH light, using Flora nutes, temps got out of hand just like you warned me. Today we got the temps to mid 70s, my Hana meter doesnt speak english or something. I was wondering if anyone could tell me if this is near ideal. Yes I know each bucket will flucuate readings. Here is controller am/pm results Ph 5.74 5.47 MS 1.24 Rating: 5