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Re: Aquatic Plants Digest V5 #38

Robert wrote, in part, in separate postings:
<<  do not like using sand for a number of reasons. It is often very alkaline,
 and it compacts.  >>

<<  I was referring to regular silica sand. >>

Am I taking this out of context?  Isn't silica inert?  I use #2 - #3 "quartz" 
 (so labeled, but it isn't really) sandblasting gravel and it doesn't 
dissolve as far as I can see.