Grodan Improved Gro-Block Big Mama, 8 x 8 x 8, no hole, case of 18 highlifeblack The phosphorus in Cyco Swell

The phosphorus in Cyco Swell plays an essential part in photosynthesis

The Bud Funnel helps keep the top 3 inches of your bag clear from pollen and other small particles and helps you get that perfect seal every time

naturally—no respirators

CONTROLLER 67

Silicon dioxide (SiO₂) 38-46%

Grodan Improved Gro-Block Big Mama, 8 x 8 x 8, no hole, case of 18 highlifeblack The phosphorus in Cyco SwellProduct DetailsGrodan Improved Gro Blocks Leverage 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 Real Real Science Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify