Review on Filter Balls Aquarium Ceramic Filtration by Audrey Caldwell

It's not the worst I've bought but I'll go ahead and list the pros and cons of this product. Pros: This is a LARGE bag and the large filters are great for filters with more or extra room. and external filter. It also has good range. Cons: Well first of all it was very dusty with lots of powdery residue which I think is fine and normal but requires multiple rinses. If you buy this SAFELY RINSE UNTIL THE WATER RUNS CLEAR. Second, while quite a lot of media and a good mix, a few random smaller regular foundation stones were thrown into the bag as filler, which is totally unnecessary. And if you have a smaller filter, some of these parts may be too big to fit. Bottom line, this is a great bag and I will definitely use it, but I won't buy it again. I can buy media of the same quality at a much lower price.