Review on Uxcell Cylinder Aquarium Pre Filter Cartridges by Mae Howard

I recently BOUGHT these pre-filter cartridges for my aquarium pump and was pleasantly surprised with how well they performed.Through trial and error I found that replacing them every two weeks works best for my tank. The cartridges are easy to install and helped improve the overall water quality in my aquarium. The only downside is that they need to be replaced frequently, but this is typical of most Pet Supplies in this category. Overall, I highly recommend these cartridges for anyone looking for a reliable, effective pre-filter option..