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.


Wayne Sallee
Wayne's Pets
Wayne@WaynesPets.com


Thomas Bartkus wrote:
Okay - I'm confused.

I *do* want to use calcium carbonate based sand because -
It will help keep up the calcium & alkalinity & pH & trace elements as the
sand slowly dissolves into the water. AND it won't scratch the glass like
a silica sand.

I *don't* want to use calcium carbonate based sand because -
Calcium will preciptate out onto the CaCO3 sand and cause the
alkalinity and pH to drop. I will have a heck of a time maintaing calcium
& pH. Better to use a neutral silica or perhaps aragonite sand.

What to believe?
Thomas Bartkus