Osmo Prep

[astrea]

Randy,
Any thoughts on this to increase magnesium and calcium in IO salt mixes.http://www.kentmarine.com/saltwater/opm.html

 

[Randy Holmes-Farley]

I wouldn't. IO doesn't need any more buffering, or certain of the other ingredients in it (potassium, etc). Since it does not say what exactly is in it, I think it likely that to boost calcium and magnesium significantly, the alkalinity would get way too high.