[DJ88]

As a counterpoint to the dolomite testing, I have a few things that I am curious about.

At what pH does Dolomite dissolve? When it dissolves what does it break down into?

My reasons for asking this ar that in a proper DSB(4" or greater) the pH within the sandbed does drop enough to cause a normal oolitic or aragonite based sand bed to dissolve at a slow rate. Breaking down and releaseing the minerals and elements within the arqagonite into the water column.

What will happen when you get the proper de-nitrification within the sandbed going and the pH drops enough to dissolve the dolomite?

I am concerned that there is no real long term knowledge with what may happen in a DSB with dolomite. I have seen what aquarium grade silica does in a reef tank and it is fine. Dolomite is nice and white and is a fine particle, but what will happen in time? With everyone rushing out to try it I am concerned that in a few months we may see Victors tank crash due to the chemical composition of the Dolomite reacting in his tank. People rushing out to load this into their tanks may want to wait and let time tell.

But that is me.. Has anyone asked any chemists what may happen in an aquarium with this stuff in it?

later...