ok substrate test inprogress.

[StirCrazy]

I have done some more serching on dolomite lime and I have found several things.

everytime Dr Ron Shimek is asked if dolomite is ok the reply is always the same
"Hi,

It should be okay providing:

1) that it has the appropriate grain size, and

2) that it doesn't have quick lime, or any such product or other contaminants in it.

In other words, if it is just ground-up dolomite, it will be fine. If it has been treated, it may not be.

If you can get some, toss it in some salt water and check the pH. If the pH rises above about 8.5, don't use it. "

also I stumbled on another thread from a old timer saying that dolomite was what everyone used befor caribsea started making sands for the reef as the only other thing they could find was crushed shells.

and to my suprise there are a lot more people using it that I thought.. a couple people with tanks running over 1 year on it and one over 2 years with no problems.

so while now with this new information (or old as it may be) and my test results I have decided that i wil use it in my tank. hell I will be the exparament in progress
[img]images/smiles/icon_biggrin.gif[/img]

but I have to wonder why people got away from it.. I never once found anything bad about "pure dolomite" and even the part about over dosing magnesium was downplayed as not a problem in a high PH and saturated solution such as sea water. which also goes with my tests as I used water with a starting PH ove 6.2

Steve