Don't thank me, thank Randy Farley-Homes, of Reefkeeping online magazine.
He's the aquarium chemist who came up with the three part recipe for sea water that I have been following since he published his first article on it.
If anyone is unclear on aquarium chemistry, check out his free library of articles in Reef Keeping on-line magazine. This guy knows his stuff!
I get my Arm and Hammer at Safeway, my Epsom salts at London drugs, and my Calcium Cloride and my Magnesium cloride at Advance Chemicals in Port Coquitlam.
Happy Reefing!

James