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Best PH Measuring Devices?

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    Best PH Measuring Devices?

    Hello My Friends, I have been using the typical PH Pens, from Amazon, they range from $10 - $15, but they only last one grow, if i'm lucky. what are you guys using? I'd sure like to find a good reliable tool, that will last several years. PH is probably the most important part of growing, so would it be better to spend the $15, for every grow, or spend hundreds on one that may last years?

    #2
    I have had good luck with the Apera PH20. Easy to calibrate. I am on my third grow with it.

    Comment


      #3
      I like the Blue Labs combo meter +, it does set one back around $300, it is a pro tool.
      I'll suggest you get the best your pocket can handle.

      Comment


      • RetiredGuy
        RetiredGuy commented
        Editing a comment
        Not sure I agree with that, my Apera holds calibration and only costs 50 US$. Can almost buy a decent grow light with the savings over the blue lab.

      #4
      Hi guys. Those two were my top two choices but the bluelab was the PH Pen for $75. Read pros and cons for both. Guess I'll flip a coin and try one.

      Comment


        #5
        Here's another question. How much fluctuation in PH do you think occurs in your tap water? I tested it every day for a week and it was within .2 every time. So I know when I add .5ml of PH down per gallon i am within .2 of 6.5PH So do I even need a tester lol.

        Comment


        • RetiredGuy
          RetiredGuy commented
          Editing a comment
          Unless you are growing in living soil, you need a reliable pH pen to adjust pH after adding nutes and to check run off pH even with constant pH tap water.

        #6
        I’m going on year 6 with my Blue Lab pH and EC pens. With proper care and handling they hold up well and are worth the money. I can’t speak to other brands because these are the 1st and only pen’s I’ve had to buy.
        Failure is an opportunity for improvement!!

        Current Grows:
        https://forum.growweedeasy.com/forum...s-jedi-og-grow

        https://forum.growweedeasy.com/forum...e-gorilla-grow

        Completed Grows:
        https://forum.growweedeasy.com/forum...ang-jack-herer

        https://forum.growweedeasy.com/forum...-northern-soul

        Comment


          #7
          I use Litmus paper. Been working for me for 12 years.
          "Treachery and Old Age will overcome Youth and Skill"

          Comment


            #8
            Howdy johnb1963, I agree with kingfish and have been using the litmus test strips for all of my grows. The test strips are accurate enough, require no batteries, or calibrations, or special handling and storage (just keep them out of direct light (sun or grow)). Oh, did I forget to mention they are also self-compensating for temperature as well! The only problem with using the litmus test strips is when I forget to order more! LOL!!!
            Smoke weed,.....grow peace!

            Comment


              #9
              Yup back then I used the drops and strips to check ph I believe yellow was the perfect ph for soil or hydro can’t remember anymore. I think Nebula mentioned I’m one of her tutorials that if you know what the water does after you add your nutes and ph up or down then you can go with out testing ph because you know your system but if things go south you have to trust that the ph is good. For that a quick strip check won’t cost much and works perfect in my opinion. Nothing to break.

              Comment


                #10
                A good tool improves accuracy and lasts longer.

                Comment


                  #11
                  I just use General Hydroponics PH Test Kit and then double check with paper test strips. I had a PH meter,a cheap one, and I got what I paid for. I would say that if you think you need one get a good one.
                  currently growing 2 x Critical Purple Kush Fem, Out doors in Fox Farm Happy Frog Soil, R/ water and small amounts of Dyna Grow nutrients if needed.

                  Comment


                    #12
                    The absolute best PH pen available is from Blulab. I have both the PH and EC pens and they've lasted for several grows with very minimum to no calibration required. They're expensive but will last you for a long time, and will provide you with absolute accuracy. I've used others and they don't last, I was tired of buying and recalibrating cheap ones.

                    SwitchH2O
                    _______________________________
                    4’x4’x8’ frame built grow room
                    Spider Farmer SE3000
                    4” Vivosun powered intake
                    8” Vivosun outtake with 8” Filter
                    RDWC (Recirculating Deep Water Culture System)
                    Rockwool starter with clay pellet medium
                    Combination of Remo, Advanced Nutrients and a proprietary blend.
                    2nd last grow - 19.98% THC
                    Last grow - 22.23% THC

                    CURRENTLY GROWING
                    White Tahoe Cookies - 3rd week of flowering
                    Cheers,
                    SwitchH2O
                    _______________________________
                    52” x 55” x 8’ frame built grow room
                    S. F. SE3000/Viparspectra 1000/Parfactworks 1200pro
                    4” powered intake
                    8” powered outtake with 6” Carbon Filter (NVP)
                    RDWC 4x 5gal with 1x 5gal reservoir (17.5g)
                    Rockwool starter (Supersoak) with clay pellet medium
                    G. H. Flora 10-Part Professional Series
                    Last grow - White Tahoe Cookies - Currently out being tested for THC/CBD and terpene profile.

                    CURRENTLY GROWING
                    Sowing Godfather OG, Green Crack and Gelato
                    All feminized

                    UPCOMING…
                    Mainlining/Manifold for next grow…

                    Comment


                      #13
                      Johnb1963...Keep in mind I use the Bluelab pens on a RDWC system, so it's imperative to check PH every day and adjust the RDWC water accordingly. If you're growing in ground and using it to measure "tap water", well that's a different beast.
                      Your PH should be dialled in at 5.8 during the vegetative stage and 6.0 during flowering. The science behind this is for another thread..., but just remember it's all about nutrient uptake.

                      SwitchH2O
                      _______________________________
                      4’x4’x8’ frame built grow room
                      Spider Farmer SE3000
                      4” Vivosun powered intake
                      8” Vivosun outtake with 8” Filter
                      RDWC (Recirculating Deep Water Culture System)
                      Rockwool starter with clay pellet medium
                      Combination of Remo, Advanced Nutrients and a proprietary blend.
                      2nd last grow - 19.98% THC
                      Last grow - 22.23% THC

                      CURRENTLY GROWING
                      White Tahoe Cookies - 3rd week of flowering
                      Cheers,
                      SwitchH2O
                      _______________________________
                      52” x 55” x 8’ frame built grow room
                      S. F. SE3000/Viparspectra 1000/Parfactworks 1200pro
                      4” powered intake
                      8” powered outtake with 6” Carbon Filter (NVP)
                      RDWC 4x 5gal with 1x 5gal reservoir (17.5g)
                      Rockwool starter (Supersoak) with clay pellet medium
                      G. H. Flora 10-Part Professional Series
                      Last grow - White Tahoe Cookies - Currently out being tested for THC/CBD and terpene profile.

                      CURRENTLY GROWING
                      Sowing Godfather OG, Green Crack and Gelato
                      All feminized

                      UPCOMING…
                      Mainlining/Manifold for next grow…

                      Comment

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