Grodan Delta 6.5 Block, 4" x 4" x 2.5" with holes Nuke em Ensure it remains in its

Ensure it remains in its original packaging and is kept in a cool

We’re driven to find the needle in the haystack of microbes that work absolutely the best for the plants you grow

has the potential to release bloom boosters that could give you the heaviest harvest of your life

Designed to run continuously 24/7

Grodan Delta 6.5 Block, 4" x 4" x 2.5" with holes Nuke em Ensure it remains in itsGrodan Stonewool (rockwool) is made from molten rock spun into cotton candy like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen