How and when do i use silica additives? | THCFarmer
#0183;#32;I use silica in veg, and also on my clones, but my water only has 40 ppm. If you''ve got 100 ppm water, it probably has some silica in it, it''s a pretty common mineral. If you''re using RO, well then you might need some. Oh, and yep, it will put your PH through the roof! Raises mine