Wollastonite Rock Dust * Size:10Kg / MB high-pressure in-line pH probe with

high-pressure in-line pH probe with 3/4 ft NPT thread

hydration and calibration – in one kit

especially during the transition into the flowering and fruiting stage

adding key nutrients into the medium while stimulating beneficial bacteria and fungi

non-denatured ethanol to saturate the material fully

Wollastonite Rock Dust * Size:10Kg / MB high-pressure in-line pH probe withWollastonite comes from the area around Seeleys Bay in Ontario. Its source is a high grade calcium silicate deposit that when mined and ground down provides an excellent rock dust made up of approximately 27% silicon, 16. 5% calcium, and 4% magnesium. Although most soils can benefit from the calcium addition, it is the silica content here that is of interest. Silica is a crucial mineral, as it contributes greatly to building the strength of cell