Catherine the product I used was called " ORGANIC ! ICH-ATTACK "
Organic products are not being pulled...If one looks up the Naphthoquinone, one of the ingredients they will show you a skill and crossbones, also a fish belly up. The store I deal with can only sell organic, they can not sell other med's
I've heard it works in freshwater, why I don't know.
Naphthoquinone web site read article : Safety Data