Grodan 4x4x4" Rockwool Grow Block Improved size:6/Pack Highest output

Highest output

Better flavors & fragrances – Improved quality of flowers

These will let you know whenever your ph parameters are out of range

Here are just a few of the properties of Black Storm:

that means you can save up to 40% on your power bill while covering the same area

Grodan 4x4x4" Rockwool Grow Block Improved size:6/Pack Highest outputNew Grodan 4x4x4" Block Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in