On Thu, 26 Dec 2002 06:38:38 GMT, "Mentaloid"
wrote:

I've read this and that about increasing the gH of a tank with CaCO3,
however a readily available source of CaCO3 is escaping me. Can anyone shed
some light on this? I know I can use baking soda sodium bicarbonate (NaHCO3)
to bring of the kH, but I want to bring my gH up as well. Help!


A local health food store sells a VERY large bottle of fine powdered
CaCO3 for $5.00 or so. The store is Vitamin Cottage, and I think
they might be a national chain.


Chuck Gadd
http://www.csd.net/~cgadd/aqua