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A good filter is arguably one of the most important pieces of equipment in your fish tank. A filter keeps the water clean and healthy, so your fish can live in a clean environment.

However, the quality of filters and filter types greatly varies. Buying the wrong filter can cause inconveniences (such as more water changes) and money lost.

Even though a filter will clean your tank, you will also need to spend time cleaning your filter. Filter maintenance is extremely important but often overlooked by people. So, researching aquarium filtration is a crucial part of setting up a successful ecosystem.