Grodan Pro Delta 10 Block, 4" x 4" x 4", case of 144, Commercial bio-organic fertilizer the tech specs are just

the tech specs are just the start

Grow-Cubes are easy to use and reasonably priced

overheat protection

DIMMER NOT INCLUDED

mycorrhizae are capable of transforming the ordinary garden into something Xtreme

Grodan Pro Delta 10 Block, 4" x 4" x 4", case of 144, Commercial bio-organic fertilizer the tech specs are justGrodan 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