"Wayne Sallee" <Wayne@WayneSallee.com> wrote in message
news:JXz%e.6702$vw6.2166@newsread1.news.atl.earthl ink.net...
Calcium sand will not cause calcim to precipitate out.

Calcium sand will not make it hard to maintain calcim and
alkalinity levels.

Calcium sand will scrach the glass

You want clacium sand.
I think you meant to say that calcium sand won't scratch!

If I interpret these posts correctly -

There isn't much point to chasing after a particular "flavor" of sand for
imaginary benefits to water chemistry. And coral, dolomite, aragonite sands
are all acceptable alternatives to silica with the added benefit that they
aren't as likely to leave scratches on the aquarium glass.

I just want something non-toxic that won't scratch my fused silica (glass!)
aquarium.
Thomas Bartkus