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I'm close to depleting my bottle of Armor SI which is general hydroponic's overpriced water mixture of potassium silicate. I prefer dry fertilizer because you always get more for your money. I'm looking at: AgSil 16H, 4 pounds in a re-closable plastic container....
Anyone using dry potassium silicate? (AgSil)
Anyone using dry potassium silicate? (AgSil)
from Hydroponics / Aeroponics
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