Grodan-Delta Block commercial-greenhouse-fixtures 3 ml per 1

3 ml per 1

several applications may be needed for full control

4'8" for VYPR x/xPLUS

Using the hole closest to the lamp will give the most focused light spread

Super Green LED Light Bulb SG Night Light by Illuminati

Grodan-Delta Block commercial-greenhouse-fixtures 3 ml per 1Grodan 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