RedRock Block, an internationally distributed stonewool grow block manufacturer, recently announced the launch of a new line of premium stonewool starter plugs. RedRock Block now manufacturers and offers a complete line of commercial stonewool starter blocks, stonewool blocks, stonewool slabs, stonewool solo slabs, and stonewool flowering slabs; with the latest addition of stonewool starter plugs.  Stonewool starter plugs are used...