Jadenlea Posted June 2, 2015 Report Share Posted June 2, 2015 Other than a PH pen, what do you guys use to test your ph under 6? Edwardnah 1 Quote Link to comment Share on other sites More sharing options...
fishlover Posted June 2, 2015 Report Share Posted June 2, 2015 I use digital pin point monitor. It is pricy but well worth it. I had a few ph pens in the past but none of them last long.... Quote Link to comment Share on other sites More sharing options...
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