Understand the relationship between electrical conductance / conductivity (EC) and TDS meters (PPMs) when measuring the strength of your hydroponics nutrient solution. (Respect and thanks to CGP Grey for the inspiration to create this video!)
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Side-by-side results comparison of soil vs hydroponic growing techniques on outdoor homegrown cannabis. In this experiment I use FoxFarm Happy Frog and Ocean Forest soils and the CANNA Coco line of coco hydroponic growing products.

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Hydroponic Nutrients TDS, PPMs and EC Explained!

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