? on Diatom Filters.

great. I have diatom problem in my tank. I changed my RODI, lights, checked saltwater and topoff water for silica and the best possible source I see is the silica sand I got from Home Depot. I mixed it with aragonite and I think it silica been slowly leaching into my water from the sand. Short of replacing my sand bed I am looking at possible ways to mitigate the effects.
 
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