[DJ88]

Addendum to my last..

Steve.. I was looking for the place I thougth MgCO3 was 60% and came across a link you posted about Dolomite lime in Washington State.

It took me to the Washington Dept of agriculture. All over the page were links to pesticide and fertilizer management. The page was called Fertilizer Product Info.

I know it's chemical make up is not toxic. But those names make me nervous. Especially when it comes to my tank. I worry about getting anything close to my tank that may harm it in anyway. Heck I am careful with windex anywhere in my apartment. Putting something in that is concidered a fertilizer in the agrigulture industry freaks me out.