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Providing an inert, airy and unobtrusive rooting environment, the excellent Rockwool growing medium has always perfectly suited hydroponic applications. Whether used as cubes to raise cuttings/seedlings and to establish these plants in main systems, or as slabs purposely designed for drippers, the tightly packed bundles of man-made fibres do a fine job supporting roots and rapid growth. The main advantages of Rockwool include its superb water to air retention properties (ensuring roots get the nutrients they need and a vital oxygen supply), compatibility with most growing systems, lightweight nature and cleanliness over alternative options. For further advice on rockwool, visit one of our stores or call 0333 003 22 96 and speak to an expert advisor at GroWell.