jd i believe freshwater fish tolerate high sodium content simply because they are fish and completely different than your cannnabis plant.. In fact sea salt in various doses are used to treat some diseases in freshwater fish as well. i peronally like to go with things that are made, tested etc to avoid any probs down the road from "unique" practices for several reasons; not the least of whhich I consider needing very quality medicine for my illneess and so use only supplired etc that i trust. also sooner or later we Will run up against some issue and I reallly dont want another wrench in there jamming up the works and adding to the mess.

the author of that post is someone who's knowledge i put great stock in but alll we growers are different.

good luck