Diff between Mag Chloride and Mag Sulfate?

[Gonzo]

I'm looking at BRS to get some Magnesium and Alkalinity. 2 questions
What's the difference between Mag Chloride and Mag Sulfate?
What's the difference between Sodium Bicorbonate and Soda Ash?


THanks!

 

[seminolecpa]

www.lmbstfy.com (Let me BAR Search that for you)

http://www.bareefers.org/home/node/9807