Replacement Filter Media

Every aquarium is different, so your filtration needs are unique. Get the most out of your filter by customizing your set-up to meet your needs for a healthy and thriving aquatic environment. You can change the foams to ones with different densities, increase/decrease the amount of a specific foam, add chemical filtration, etc. If you are replacing filter media in a filter that has been running, we recommend you replace media incrementally. First replace one of the multiple filter foams, after two weeks replace the next one, and so on. If you replace foams all at once, the filter will not be completely active for several weeks, because regrowth of bacterial cultures takes some time.