grow medium [Archive] - Growing Marijuana Forum

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A.K.

07-02-2007, 08:46 AM

are volcanic rocks a good grow medium?

Stoney Bud

07-02-2007, 09:36 AM

yes, excellent. About 3/8" to 1/2" size. Very porous and works for hydroponics exceptionally well.

KADE

07-07-2007, 12:57 AM

And reuseable too! =)