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Grodan Rockwool Cubes
Grodan rockwool is an inorganic and sterile growing medium made from spun molten rock. A superior medium for rooting cuttings, Grodan rockwool provides 20% air space when saturated, and does not contain nutrients. It is recommended that rockwool be conditioned by soaking for eight hours in a pH 5.0-5.5 and then rinsing with pH 7.0 water. Water Grodan rockwool daily. HUGO cube measures 6"x6"x6" and is a great replacement for 6" slabs.




$8.06 1.5in. Individually wrapped cubes, 45 pack Qty
$11.75 1.5in. Cubes, 98/sheet Qty
$6.01 2x2x1.5in. Individually wrapped cubes, 24 pack Qty
$10.23 2x2x1.5in. Cubes, 50/sheet Qty
$5.08 3x3x2.5in. Cubes, 8 pack, w/holes Qty
$7.61 3x3x4in. Cubes, 8 pack, w/holes Qty
$5.27 4x4x2.5in. Cubes, 6 pack w/holes Qty
$7.30 4x4x3in. Cubes, 6 pack, w/holes Qty
$8.55 4x4x4in. Cubes, 6 pack, w/holes Qty
$13.04 Hugo 6x6x6in. Cubes, 4 pack w/ holes Qty


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