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  1. Hey there! So you recommend using Cal-mag, then switching to a Mag-Sulfur pruduct in flower. What Mag-Sulfur products are out there? I haven’t really seen any. Are these what many companies refer to as “hardening agents?” What does the Sulfur do exactly, boost terpene smell perhaps? Couldn’t I just use Epsom salts? (MgSo4)… by weight it consists of 13% Sulfur. Is this what some of the other 10,000 growers are using?

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