Holographic_spew
- Posts
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- Joined
- Feb 22, 2020
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- 18
Hey guys so I've purchased an EC and pH pen online and I'm just looking for some advice on how to read it. There's no decimal and I think it reads in us/cm. I've looked online and it says to divide the reading by 100 and that will give me the reading in ms/cm. Is this correct ? Also what are the optimal EC levels and PH levels for Coco 
