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what is the ratio I should use if I want to supplement MG w/ epsom salt into my hydro reservoir? My plants are showing signs of MG def, 1 mildly and 1 severely on the brink of not coming back
epsom salts are used to improve your nutrient profile so you would need to figure out what your targets are (mel frank suggests 100-100-200-60 in N-P-K-Mg format)
one gram of epsom salt per gal is going to increase Mg 26 S 34