Aquarium Filter, Aquarium Filter Pump

Aquarium filters circulate water and provide space for mechanical, biological or chemical filter media. The appropriate system depends on aquarium volume, stocking, feeding, required water movement, available installation space and maintenance access. Internal filters, external filters, sponge filters and specialist systems each have different advantages and limitations.

Manufacturer aquarium-size recommendations provide a starting point, but actual flow can fall when media, hoses and fittings add resistance. Compare filter volume, stated flow, power consumption, dimensions, connections and the availability of replacement media and spare parts. Marine and specialist aquariums may require additional equipment that is not replaced by a standard aquarium filter.

Use the subcategories to compare complete filters, filter accessories and suitable media. Product pages show the scope of delivery and whether hoses, taps, media, spray bars or other connection parts are included.