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Should I add lime to my soiless or just use my 240ppm tap water for Ca? I know my problem is lack of Ca but I've heard that Vermiculite provides Ca. Anyone know???? Thanks to all for the advice!!

I use 20-20-20 for seedlings @ 150ppm + epsom @100ppm for a 250ppm total. I raise the total to 300- 500ppm for veg I then change to Peters 10 30 20 for flower@600ppm + epsom@200ppm for a total of 800ppm. I get red stems from clones to seedlings to early veg and yellowing between veins on mid and...

Please help!! I'm growing White Widow indoors in a 1-2 perlite vermiculite mix and using Peter's 20-20-20 and epsom salt with RO water with ok results. Should I add lime? What should my nute pH be? I'm trying 5.3- 5.5 pH now. What should my nute and epsom concentrations be? ANY help would be...