Originally Posted by stimpy4242
Is there any reason you could not use it as the salt? I mean while I realize it isn't a fish company, they do sell only salt...so i would think they have some idea as to what they are talking about...but maybe not.
The salt in salt mix is primary NaCl, not CaCl2. Your fish will die instantly if you try to put them in a solution of Calcium Chloride.
Now, I've heard people mix their own salt using these easily found chemicals:
NaCl - Home Depot
CaCl2 - Home Depot
MgCl2 - Home Depot
Epsom Salt - Grocery Store
Mix them proportionally w/ RODI & you have ~98% by weight of the NSW composition. Sprinkle some KCl & KBr, you will be close to 99.9% by weight.
Disclaimer: Don't try to use this mix on a major scale. NSW and commercial salt mix have many many trace elements like Phosphate, Silicon, Iodine, Fluorine, and etc.