Abstract: An aquarium includes a tank having an interior region formed by a bottom and at least one wall extending up from the bottom. A cover, supported by the wall of the tank, substantially encloses the interior region of the tank. An intake port draws relatively cool, dry ambient air into the tank and an exhaust port exhausts relatively hot air from the tank. The exhaust port is elevated with respect to the intake port. The arrangement is such that hot air rises within the interior region and is exhausted from the interior region via the exhaust ports, which causes cool, dry air to be drawn into the tank through the intake port. The introduction of ambient air into the tank prevents the build-up of condensation on the wall of the tank. A lamp is mounted on the underside of the cover whereby the heat generated by the lamp exhausts through the exhaust port.

Abstract: A wall-mounted aquarium assembly comprising a plurality of discreet tanks in stepped, gradually descending relation whereby water introduced to the uppermost tank flows therethrough and then down into and through each succeeding tank. Means are provided for channeling the flow of water from one tank to the next.