Grodan Pro A-OK 36/40 6/15 Starter Cubes, 1.5" x 1.5", 30 sheets of 98, Commercial water-pumps-&-irrigation-supplies They consistently provide intense light

They consistently provide intense light in the correct spectral range for vigorous flowering growth and can even be used

multiple units may be needed

Granulated rockwool can be used alone or as an amendment to organic based mixes

but not in strength and uniformity

More about Plasma Air 50 Series Industrial Ionizer: Plasma Air models 51E

Grodan Pro A-OK 36/40 6/15 Starter Cubes, 1.5" x 1.5", 30 sheets of 98, Commercial water-pumps-&-irrigation-supplies They consistently provide intense lightGrodan 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