Rockwool is ideal for Hydroponic growers. Rockwool will not buffer the pH of the solution nor degrade into soluble parts that could affect your plant. Rockwool must be prepared prior to use, and it is best to soak the cubes for 24 hours in a light nutrient solution that has
Rockwool can hold large quantities of water and air that aid root growth and nutrient uptake in hydroponics; the fibrous nature also provides a good mechanical structure to hold the plant stable. It is used primarily for drip hydroponic systems. Rockwool is made by melting a combination of rock and sand
