Review on 🔍 CNZ Universal Media Filter Bag: Optimal Ammonia Removal with Bio-Balls, Ceramic Rings, and Pellet Carbon by Raquel Perkins

I ordered these to use with Aquacity ceramic material. I had no idea the ceramic filter materials were packaged in two identical bags, except that they were white instead of black. Great bag for large filter media. Won't work with most carbons or things like phosphonde, the holes are too big for anything smaller than the size of an eraser. But they are strong and the only problem, as mentioned, is the metal zip. Which isn't a big problem at all. Only gave 4 stars instead of 5 because it turned out I didn't need them. Although sooner or later they will be used.