Grodan 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...
pH Up and pH Down — Hit Your pH Sweet Spot Every Time
Ask any grower, and they’ll tell you the same thing . . .
You can feed your cannabis the best nutrients in the world. But if your root zone...
