Bill Stock wrote:
I decided to add Potassium and Magnesium to the last batch of "PMDD" I mixed
up to save me the trouble of adding it separately. But the amounts I needed
to add to my stock solution to reach Chuck Gadd's recommended dosages were
above the amount of each compound that would dissolve in my stock solution.
So I reduced the amounts to levels that should dissolve in my stock
solution, but they still did not stay in solution.

I gather these "dissolvability" numbers are cumulative and not specific to
each chemical? Is the cumulative effect straight line or does it depend on
the chemicals being dissolved.

Just curious.



Yes, the amount of solids you can add to a solution is cumulative. The
effect depends on the chemicals being dissolved and some even
precipitate out in combination, like calcium and phosphate.

--
Elaine T __
http://eethomp.com/fish.html '__
rec.aquaria.* FAQ http://faq.thekrib.com