Help with EC

Full-strength nutrient formulas usually have a target EC of about 1.8. During the vegetative growth stage, it’s best to keep the EC in the 1.2-1.6 range for most plants. If the EC rises above 1.8 during the vegetative growth stage, just add more water to the reservoir to lower the EC. If the EC is too low, just add more fertilizer. It’s that simple!

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DankBuds420 said:

So my tap water is. 4 ec, worked OK my first grow but don't like choloramine and other contaminants in my water so I installed a ro filter to purify my water to 0 ppm. From my understanding I need to add cal mag until it hits. 4 EC. Then I add micro and mix, the grow and mix, then bloom and mix. What are the EC and ppm ranges for sativas and India's both? Indicas can handle higher ppm and ec I know. But my research online has led me to charts that say different things. So I'm confused on this topic as I'm a 2nd time grower who never measured ppm or ec or oh my first grow. I somehow made it to the finish line with weak results on my harvest yield. I wanna do it right this time. I know all about PH and it's importance in Hydro. But I'm confused on ec levels for both Indica strains or sativa strains, what about hybrids?

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