R/O water????????

Discussion in 'Growing Marijuana Indoors' started by Lekter, Mar 25, 2012.

  1. Sup to all,
    I have just recently found some brownish spots indicating a mag deficiency, I have read to give it a 2% foliar spray with epsom salts and some in the water as well. I wanted to know how many grs of epsom salts per Litre of water. Any help appreciated thanks.

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