Grodan Pro A-OK 36/40 6/15 Starter Cubes, 1.5" x 1.5", 30 sheets of 98, Commercial water-pumps-&-irrigation-supplies Granulated rockwool can be used

Granulated rockwool can be used alone or as an amendment to organic based mixes

but not in strength and uniformity

crafted as a superior pest management tool

3 gallon) Air-Pot is the perfect way to germinate seedlings or for potting cuttings

Grodan Pro A-OK 36/40 6/15 Starter Cubes, 1.5" x 1.5", 30 sheets of 98, Commercial water-pumps-&-irrigation-supplies Granulated rockwool can be usedGrodan Stonewool (rockwool) is made from molten rock spun into cotton candy like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen