Grodan Gro Block Improved GR10 Large 4" w/Hole 4" x 4" x 4" Strip, (case of 144 blocks) Master Controller the yield of your grow

the yield of your grow

Adjust PPM higher in later stages of the bloom cycle to desired strength

It will degrade and convert dead plant matter into readily available nutrients that keep the plant robust

These additional carbohydrates provide the plant with the energy it requires to fuel respiration that drives fruit set

【High Efficiency】Adopt the latest high-quality Samsung LM301B LEDs with high energy efficiency

Grodan Gro Block Improved GR10 Large 4" w/Hole 4" x 4" x 4" Strip, (case of 144 blocks) Master Controller the yield of your growGrodan Improved Gro Block Improved GR10 Large 4" w Hole 4" x 4" x 4" Strip Grodan 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