Rock wool is a great option for growing cannabis, and its all-level friendly, using various hydroponic setups, which allows growers to harvest heavier yields very fast.
Rock wool makes use of natural stone’s characteristics to produce a fluffy, aerated growing material that is ideal for growing cannabis. Rock wool drains well, supports root development, and it has a cubic form, allowing it to be easily transplanted into hydroponic or soil-based systems.

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