To my knowledge ALL sand is Silica based......Not sure about blacker types though...


Sicate minerals are some of the most inert substances on the planet and It would take something drastic to liberate the silicone from it's super stable compound.


I think Liquid silicone is your best bet...and also the correct type and dosage.:thumbsup:
Easy Roller Reviewed by Easy Roller on . silica sands as silicate nutrients? My workplace uses significant amounts of silica sand, ranging from very small particle sizes (20 microns) to significantly larger (100-200 micron) and as such I can get access to a decent amount of it for free. Does anyone know if this would provide silicon for hydro plants sufficiently? Rating: 5