Grodan-Expert Slab beneficial microbes Reliable operation throughout the growth

Reliable operation throughout the growth cycle

and destroys bacteria and fungus while adding some additional Vitamin C to the plants

USE APCTART

and Light Sensor

it is recommended for indoor or greenhouse use only

Grodan-Expert Slab beneficial microbes Reliable operation throughout the growthGrodan 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