trouble reading my ec meter..

Discussion in 'First Time Marijuana Growers' started by Doc greenthum, Nov 25, 2011.

  1. this is the pen eBay - The UK's Online Marketplace

    so before my tank change it was say 250 and said x10 in corner i read to x10 then
    x . 5 to get ppm but now it shows 380 without x10 so would that be ppm without having the multiply? it would make ec .5 but i dont want to add more nutes unless that is right!
  2. surely someone knows?

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