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    TDS-3 Handheld ppm .5 or .7 ?

    is the TDS-3 http://www.tdsmeter.com/products/tds3.html .5 or .7 for the charts??
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    Hydroponic Water Tempatures?

    I have read: -Lower Temps are good to keep a sterile system 62-69F -But certain temps in 70's or 80's are optimal for max growth. I'd like to talk about: 1 What temp do you use? 2 Why? 3 What is the Low end optimal sterile temp? 4 What is the the higher optimal max growth temp? 5...
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    Sucanat vs Molasses ?

    Ive searched and cant find the answers to these: 1 how is sucanat compared to blackstrap molasses? 2 pros/cons? 3 which is the more neutral flavored carb that will leave natural genetic flavors? 4 does sucanat also act as a chelating agent just like molasses? Discuss...
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