Horticultural Pumice 3–8 mm
Porous, inert pumice for potting mixes, soil aeration and hydroponic growing.
Try “softener”, “ETP”, “denim enzyme” or a CAS number like
Pumice Stone
Porous, inert pumice for potting mixes, soil improvement and hydroponics.
Porous, inert pumice for potting mixes, soil aeration and hydroponic growing.
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