Silica greval or quartz should i use?? | Freshwater ...
Jul 03, 2016 · Play sand and socalled Blasting sand are very high in silie and should be avoided if you wish to keep silies low. this is just one article where I got some of my info. it is similar on all sites. I'm not arguing with you but this is what info is out there. if you know how the diatoms get there and stay or how to rid of them I would love ...
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