https://greenbookpages.com/reviews/hydroponics/mad-farmer-silica-shield/ Sat, 04 Jun 2016 19:29:28 +0000 hourly 1 http://wordpress.org/?v=3.4.2 https://greenbookpages.com/reviews/hydroponics/mad-farmer-silica-shield/#comment-225 Hank Fri, 19 Apr 2013 21:31:30 +0000 http://greenbookpages.com/reviews/?post_type=place&p=3820#comment-225 Good choice to add to your nutrient collection, helps rebuild plant tissue and fight off the pests in your soil. They also strengthen the stalks of the plant so that it will be able to hold a heavier harvest. I add it once a week until harvest. Good choice to add to your nutrient collection, helps rebuild plant tissue and fight off the pests in your soil. They also strengthen the stalks of the plant so that it will be able to hold a heavier harvest. I add it once a week until harvest.

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