Hydroponic Unit (Set of 100)

This rockwool is very effective hydroponics supplies, made of high-quality basalt, centrifuged at high speed to form fibers after being melted at high temperature, and compressed into blocks through proprietary process, soft and even texture, good water absorption and strong air permeability, which is helpful to the growth of roots.Much convenient than starting in the soil, these are great for planting enthusiasts and commercial growers.
Features
Firm: hold their shape well and do not fall apart
Breathable: retaining plenty of oxygen for rapid plant growth
Aseptic production: Inorganic and sterile growing medium better than soil
Water & nutrient retention: retains a lot of water and nutrient solution