Tidal™ Power Filters are designed for unmatched convenience and versatility for your aquarium. They offer a self-priming pump, a dual water intake with surface skimmer, adjustable flow, and a filter basket that fits any type of filtration media. Fully adjustable flow regulation lets you customize the perfect environment for your fish's needs. With the surface skimmer, you can remove floating debris and excreted fish oils. There's also a maintenance alert, a no-mess filter basket, and a self-cleaning impeller. Ventilation slots and aeration grooves maximize gas exchange, with a bottom-to-top flow. The adjustable telescoping intake pipe ensures optimal water flow. Plus, there's no need for filter cartridges and you can get a 3-year limited warranty with registration. Tidal filters bring the highest water quality with maximum ease of use.