Patent ID: 7631616

Claim:
An aquarium, comprising: a body having a vertical first compartment and a vertical second compartment, both along a back side of said body, and a lateral third compartment along a bottom side of said body, said third compartment being separated from said body by a third partition plate, said first compartment being conducted to said body, said second compartment being conducted to said third compartment and said body, said third compartment having a winding path for water to flow through, said third partition plate having an ear extending into said second compartment to separate said second compartment into a top half and a bottom half; a first filtration mechanism, a second filtration mechanism, and a third filtration mechanism housed inside said first, second, and third compartments, respectively; and a water pump positioned on a bottom side of said first compartment, said water pump drawing water from said winding path of said third compartment through said third partition plate into said first compartment; wherein, when said water pump is turned on, a circulation of water is created where water flows from said body into said second compartment to undergo a filtration process by said second filtration mechanism, through said winding path of said third compartment to undergo another filtration process by said third filtration mechanism, into said second compartment to undergo yet another filtration process by said first filtration mechanism, and finally back into said body.