http://web.archive.org/web/200103032.../1/default.asp
I've seen this before and it's on one of the links posted above but I found this very interesting now that I'm actually considering putting saltwater in a tank in a couple months
Does anyone here not dose Ca and Alk? I'd like to avoid it as I will be doing rather frequent, heavy water changes in my tank when I get the uncured rock in there, getting less frequent and heavy as the rock cures. Though, in the end, I'd like to do a 10% water change every 5 days once the rock is cured and the tank has cycled.