I have a problem. I bought bulk supplies of magnesium and ended up with 300 lbs of the stuff!
I made it with lab grade magnesium chloride and lab grade magnesium sulfate. I followed the directions from the reef chemistry forum.
http://web.archive.org/web/20001017...bio/default.asp
The above procedure that I used is much better then just epson salts because it does not disrupt the ionic balance in the system.
I am currently using it in my 250 gallon SPS system.
I am willing to sell it for $2 per pound (my cost just for raw materials $1.15) for small portions. Under 15 lbs.
For large portions I will sell it for $1.75 per pound. 15 to 30 lbs.
To encourage people to get this stuff out of my garage (I have enough to last me for 120 yrs) I will sell amounts over $30 lbs for $1.35 per pound.
I live in Winnipeg Manitoba. I will figure out shipping charges if you like. I travel to Saskatchewan on occasion so I could deliver some out there.