Grodan A-OK 36/40 6/15 Starter Cubes, 1.5" x 1.5", 30 sheets of 98 HPS Perfectly sized for standard germination

Perfectly sized for standard germination trays

the DE Metal Halide lamp offers spectral distribution optimized for photosynthesis efficiency with PAR output of up to 1800 μmol/s

PfrSpec targets far-red wavelengths for photoperiod control and stem elongation

As a plant wash

and is FCC compliant

Grodan A-OK 36/40 6/15 Starter Cubes, 1.5" x 1.5", 30 sheets of 98 HPS Perfectly sized for standard germinationGrodan 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