Review on 🔍 Seachem Purigen 19179 - Ultimate Filtration, 2.1 oz/100ml by Janelle Simmons

I bought two Fluval tanks with huge internal filter cartridges - plenty of room to add whatever filter material you want on top of the sponge, rings and carbon that come with the kits. After reading great reviews about Purigen I bought a pouch for one of the filters. The problem is I don't know what it really does. The water values are good and stable before, during and after using Purigen. I ended up replacing it with an ammonia absorbing bag.