Abstract: An enclosure for animals and plants includes a bottom and a side wall. The wall and bottom are interconnected to form a unitary structure. A top for the unitary structure includes a glass portion and a screen portion. Structure is provided for selectively locking the top to the unitary structure.

Abstract: An enclosure for animals and plants includes a bottom, first and second end walls, and first and second side walls. The walls and bottom are interconnected to form a unitary structure. A top for the structure extends between the walls. Structure is provided for selectively locking the top to the structure.

Abstract: An aquarium trickle filter for filtering aquarium water includes a housing. The housing includes an inlet for prefiltered aquarium water and an outlet for filtered aquarium water. Disposed within the housing is a chamber including filter elements. A drip tray having a top surface and edges is disposed adjacent the chamber to form a cover for the chamber. The drip tray top surface includes a plurality of grooves which include a plurality of apertures for allowing prefiltered aquarium water to enter the chamber and be uniformly dispersed over the filter elements. A channel is disposed adjacent to the chamber and in fluid communication with an aquarium. The channel is further disposed adjacent to a side wall of the housing. The channel includes an inlet and an outlet. Structure is disposed adjacent to the channel outlet for directing prefiltered aquarium water from the channel to the edges of the drip tray.