Grodan Gro-Block Big Mama Improved 8x8x8 -No Hole trim bin and raise its pH level

and raise its pH level over time

sediment filter

Patent-pending controller technology embedded within each fixture enables control of up to 2

You can daisy-chain up to 4 of these units to the MTMDU unit to maximize your seed starting area

Grodan Gro-Block Big Mama Improved 8x8x8 -No Hole trim bin and raise its pH levelGrodan 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 the optimal