Dead Sea Salt super suitable as bath additive, not for aquariums!

Did I originally gained salt for my Artemia breed the Dead Sea. Unfortunately, this was not a good idea, because in the Dead Sea salt are very many minerals (eg magnesium).
Since this is a completely natural occurrence in this salt.
Thus, it unfortunately is not suitable for Artemia breeding nor for saltwater aquariums.
Have more Artemia Embody and rearing experiments made with this salt, to no avail.
As a bath additive, however, the more successful. Nearly all bacteria are abgeötet in water or on the skin by this very elevated magnesium and calcium values ​​so.
As a bath additive I would buy it again. For Artemia breeding I use a sea salt (without anti-caking, without iodine) from the health food store for 0,99 / kg