Review on Fluval Chi Replacement Filter Kit - 3 Filter Cartridges and 1 Foam Biological Cartridge by Natalie Adams

Works great for a small pool with a light load. The only problem I have is that the filter gets dirty on one side before the other. It just leads to more frequent cleaning. The filter itself lasted about a month with weekly cleaning. Having to clean the filter in the aquarium water to keep bacteria out probably hasn't improved the life of the filter, but a sick or dead fish sounds even worse.