ichthyoid;801447 wrote: If you use only magnesium sulfate (eg- Epsom salt) both Craig Bingman and Randy Holmes-Farley, both PhD chemists and reefers, state that you risk ending up with too much sulfate (ionic imbalance).
They recommend adding both.
http://reef">Http://reef</a> keeping.com/issues/2006-07/rhf/index.php[/QUOTE]
+1. No one likes ionic imbalances!