Grodan Gro-Block Improved GR6.5 Small 4'' (4''x4''x2.6'') | Case of 216 unwrapped Cal Mag Additives 000 grams (44 LBS) per

000 grams (44 LBS) per hour of fresh flower or 5

This feature-rich tent also includes a waterproof floor tray

That matters in a humidor

so if a room overheats the controller auto-dims or shuts that zone down to protect the crop

Grodan Gro-Block Improved GR6.5 Small 4'' (4''x4''x2.6'') | Case of 216 unwrapped Cal Mag Additives 000 grams (44 LBS) perGrodan Gro Block Improved 4x4 for Precision Growing These stone wool blocks feature advanced wetting technology for even water content and EC throughout the entire substrate, enabling faster rooting in and consistent plant development. The optimized fiber structure supports stronger roots that fully explore the block, improving water and nutrient uptake while reducing overall inputs. Backed by collaboration with Wageningen University & Research and