PRO-MIX 2.8cu' bark & bio fungicide & mycorrhizae (48/pelt) - bark - low water retention - formulated with an aged pine bark, pro-mix bark is nitrogen stabilized & therefore well suited for growers who require more frequent dry down periods & have to compose with a changing growing environment. PRO-MIX bark is a carefully design low water retention growing medium which will provide quality & consistency for great results.
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