Grodan Improved Gro-Block Big Mama, 8 x 8 x 8, no hole, case of 18 X Nutrients bloom 9 µmol/J System PPE –

9 µmol/J System PPE – Whole-fixture efficiency that outperforms most competing 1000W-class LEDs on the market

One case of (8) GC 30 makes 2

feed your plants the legendary Primal Harvest

Leaf Green is recommended for plants that have difficulties during their initial development

Active Ingredient: Ulocladium oudemansii (U3 strain) — 5 × 10⁸ CFU/g (minimum)

Grodan Improved Gro-Block Big Mama, 8 x 8 x 8, no hole, case of 18 X Nutrients bloom 9 µmol/J System PPE –Grodan Improved Gro BlocksLeverage the benefits of products developed alongside plant scientists, that are specifically engineered to deliver real results for your crops. Grodan Gro Blocks Improved with Advanced Wetting Technology Grodan's improved stone wool substrate. Keep it RealReal ScienceGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone