Abstract: The present invention provides a compact design and provides an improved viewable area. In an exemplary embodiment, the present invention comprises a container having a height, a depth and a width. The container comprises a main cavity, a lower cavity, at least one side cavity and a filtration system. The lower cavity is located below the main cavity and a first plate separates the lower cavity from the main cavity and allows limited fluid communication between the lower cavity and main cavity. The volume of the lower cavity is substantially less than the volume of the main cavity. The side cavity is located adjacent to the main cavity and a second plate separates the side cavity from the main cavity and allows limited fluid communication between the side cavity and main cavity. The side cavity has a volume less than the main cavity and more than the lower cavity.

Abstract: The present invention is an aquarium filter that treats water mechanically, chemically and biologically, provides maximum and uniform circulation and aeration of water, prevents channeling, reduces surface debris, reduces leaking and clogging, maximizes the viewable area, facilitates a slim profile, while being uncomplicated to install and inexpensive. In an exemplary embodiment, the present invention is an aquarium filter comprising a first surface skimmer, a second surface skimmer, a first mechanical filter, a second mechanical filter, a plurality of drip trays, a plurality of biological filters, a first chemical filter, a second chemical filter, a pump and a conduit.