DrMyc.com Magical Gypsum for Mushroom Substrates - Lab Grade Purity Gypsum with Organic Humic Acid, Biochar, Sucrose & MGP Microbes for Mushroom Growing (3.0 lbs) Control Solutions 14 1/4" x 73/4" x
SKU 43442965837Pay in 4 interest-free payments of $14.37 Learn more
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Ships within 48 hours · Estimated delivery Nov 4 - Nov 9

























