Grodan Pro Delta 6.5 Block, 4" x 4" x 2.5", case of 216, Commercial rock-bottom The polymers also reduce over

The polymers also reduce over and under watering

• Germination & pollination

Solubility

One Big Display

900 µmol in the key 400-700nm range

Grodan Pro Delta 6.5 Block, 4" x 4" x 2.5", case of 216, Commercial rock-bottom The polymers also reduce overGrodan 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