Grodan Rockwool SBS Trays Size:Full Box 150 Tray - 18 Trays it offers a powerful yet

it offers a powerful yet refined boost to early flowering performance

and a productive growing season — particularly effective where substrate capacity is limited

Use throughout the grow and bloom cycle whenever calcium or magnesium deficiency is suspected

or when roots are under stress

Grodan Rockwool SBS Trays Size:Full Box 150 Tray - 18 Trays it offers a powerful yetThese are an ideal solution for seed germination and propagation cuttings. They allow perfect air and water balance, and promotes strong root growth throughout the entire tray of cubes. Grodan is a market leader with years of experience and quality assured products for the indoor and outdoor grower. The single block system is supplied in a plastic tray for easy handling. Once roots have established, transplant into the bigger Grodan Delta Cubes or