Try here http://www.threeguysaquatics.com/ They sell both pre-mixed
liquid and dry ingredients.

Jody

On Tue, 22 Jul 2003 02:08:49 GMT, "WD" wrote:

I found http://www.hydroponics.com/info/aquatics/pmdd.htm, but alas, it's in
Canada. Anyone know of a US supplier of pre-mixed PMDD?