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- #261
NewBGrower420
New Member
just got done mixing some nutes I have 3 ph pens now thought 2 were broken but only need to re-collibrate and their working fine. blue pen is the ppm and the yellow and red is ph I wanted to double check the ph so I used the red pen to double check and got the same numbers! what I did was take a litre of water from my gallon that was left out acouple weeks and mixed grow a&b 1ml each. I have not fed yet I'm going to let that litre sit out a few hours and shake it up acouple times before feeding! heres the pics