Grodan Gro Block Improved Mini Block 1.5" Strip -Shrink Wrapped (Sleeve of 45) GAC Formulated from organic ingredients to

Formulated from organic ingredients to provide an ideal balance between water retention

hydroponic systems and more

high-efficiency and made from environmentally-responsible recycled resins

It also contains Humic and Fulvic acids

Grodan Gro Block Improved Mini Block 1.5" Strip -Shrink Wrapped (Sleeve of 45) GAC Formulated from organic ingredients toGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan Gro Blocks Improved with Grodans Advanced Wetting Agent. These leading edge blocks have the optimal fiber structure and physical properties for crop uniformity, more