DWC question

Discussion in 'First Time Marijuana Growers' started by Shifte83, Jul 10, 2017.

  1. Hi all so I'm about to change my res for the first time ananda have a question, should i just clean with hydrogen porixcide or I have read somewhere that I can add it in to the soup @ 3 mill per litre? Does this sound right ? Cheers ..

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