Hello everyone, So I went ahead and bought the Apera PC60 5 in 1 meter. I have calibrated it twice now and it's reading my ppt at 1.82. Google says to multiply the ppt by 1000 to get the ppm.. wt..f how in the hell did I get 1820 ppm's in my soil? I'm in week 3 of veg, using ffof, haven't applied nutes yet. I have been using mycorrhizae throughout the grow and last week I started the Cal-Mag regiment. In 4 days I will be starting nutes, so I absolutely need to sort out this ppm/ppt issue. Suggestions and advice please. Once again thank you in advance!