Re: algae control in fresh water
Thanks for your questions and interest in Purigen. Purigen is a scavenging resin that will seek out organic nitrogenous compounds. Specifically, it removes these from the water before they are converted to things like ammonia, nitrite, and nitrate. This is the means by which it controls these levels. If you are wanting to remove phosphates, PhosGuard would be the choice for you, not Purigen. Purigen will not directly lower nitrates that are preexisting, but will prevent the buildup of them in the future.