An apparatus for dividing an aquarium into a plurality of compartments includes retainer assemblies and a divider. The retainer assemblies each have a retainer member and a base member, and the base member is removably attachable to the aquarium. The divider is positionable between retainer assemblies and has at least one opening allowing for fluid communication between compartments. A method for dividing an aquarium into compartments includes affixing retainer assemblies to locations in the aquarium, positioning a divider between the retainer assemblies, and connecting the divider to the retainer assemblies.

Disclosed is an aquarium ornamental device. An aquarium ornamental device comprises a compressor configured for compressing inlet air, a multiport valve that is electromechanical or mechanically actuated, a plurality of pipes, and an expandable-and-shrinkable member having at least one one-way valve; the compressor, the multiport valve, and the expandable-and-shrinkable member are connected one another in sequence by means of the pipes; the compressor and the multiport valve are placed outside the aquarium, and the expandable-and-shrinkable member having the one-way valve is placed in the water contained within the aquarium.

A computer aquarium mounting structure includes an aquarium with water, wherein, a through hole is provided on the side wall of the aquarium, a motor case is installed on the outer wall of the aquarium, a computer motherboard is provided inside the motor case, a radiator is provided inside the aquarium, and the radiator is sealingly provided at the through hole, a CPU and/or a graphics card installed on the computer motherboard contact with the outside of the radiator. The disclosure can combine the aquarium with the computer organically, which can not only cool the computer through the aquarium, but also create a real sense of the desktop natural landscape. Moreover, it doesn't take up more space on the desktop, and doesn't make any noise because a fan will not be needed.

A coral holder which either resides in an aquarium or in a transport container. The coral holder may be either a fixed object or an insert. The coral holder has one or more coral channels, preferably elongated channels, which accept corals or coral plug(s) held securely in place anywhere along the channel(s) until the user desires to adjust or remove the coral plug.

The present invention provides a multifunctional submersible pump, which provides multiple functional selections suitable for various types of aquariums, including water circulation and filtering, pumping out wastewater, oxygenation, and carbon dioxide refining. The bottom portion of the submersible pump is provided with a water inlet, a water outlet, a wastewater drain outlet, and an adjustment knob. Left and right rotation of the adjustment knob enables water circulation and filtering or pumping out wastewater, as well as enabling adjusting the amount of water flow. One side of the top portion of the submersible pump is fitted with a retainer ring, which enables disposing an aquarium lamp therein. Another function of the present invention lies in the design of the simple assembly method of the CO.sub.2 refiner, whereby the refiner can be easily disassembled for cleaning when a ceramic refining disk placed inside the refiner is obstructed by pollutants.

A screen for a fluid tank, the screen comprising: at least one expandable screen section configured to be positioned on a fluid tank to permit movement of the at least one expandable screen section relative thereto, wherein the at least one expandable screen section is configurable between an expanded state and a contracted state. There is also provided a tank having a screen arranged vertically movable therein and a method for moving aquatic animals out of a tank, the method comprising: arranging the at least one expandable screen section in or on the tank in the contracted state; bringing the at least one expandable screen section to the expanded state; and moving the screen relative to the tank to crowd the animals towards an outlet in the tank.

A problem to be solved by the present invention is to prevent an aquatic creature from jumping out of a water tank without directly contacting the aquatic creature; and a jump-out prevention device for the aquatic creature, which can solve or reduce the problem, is provided. The jump-out prevention device for the aquatic creature includes electrode parts arranged along an inner perimeter of a water tank for keeping the aquatic creature; and a power supply part electrically connected to the electrode parts, and configured to apply electrical pulses to the electrode parts. The electrode parts extend in a horizontal direction partially or entirely over the inner perimeter of the water tank, and are arranged in a predetermined underwater region in the water tank. The electrical pulses are applied to the electrode parts.

Apparatus and associated methods relate to selectively inducing ingress and/or egress of live food creatures (FCs) relative to a reservoir using a controllable light source based on innate behavior(s) of the FCs. In an illustrative example, a feeder for dispensing live food to a carnivore may have a (partially) opaque chamber configured to receive FCs. A controlled light source may, for example, be selectively operable to illuminate at least part of the chamber. A carnivore interface may, for example, be in communication with the chamber via at least one dispensing aperture and be configured to present a dispensed FC to the carnivore. Operation of the controlled light source in a dispensing mode may induces motion of the FCs in the chamber towards the carnivore interface to be presented as food to the carnivore. Various embodiments may advantageously induce self-dispensing and/or self-retention of insects as food.

An example aquatic imaging system comprises a light source, a first platform coupled with a image capture device and a second platform that is parallel to the platform, the image capture device having a first field of view, and, the second platform being coupled to a organism tank, first organism tank having an inner wall, outer wall and a base that defines a well capable of retaining water, the base being parallel to the second platform, the organism tank configured to receive a light beam originating from the light source and configured to project at least a portion of the light beam through the well and in a directional plane that is parallel to the base, the image capture device configured to direct the first field of view from the first platform through the well in the organism tank.

A system for transferring marine life within an aquaculture facility including a plurality of segregated storage facilities each containing water for marine life, maintained within a predetermined temperature range and supported at independent ground levels. The storage facilities are successively disposed and structured to contain marine life at different stages of growth. A transfer assembly includes a path of fluid flow interconnecting successive ones of said plurality of storage facilities in fluid communication with one another, wherein at least a majority of a length of said path of fluid flow is disposed beneath the independent ground levels at a predetermined depth, which is sufficient to facilitate maintenance of the path of fluid flow within the predetermined temperature range, via geothermal cooling. The transfer assembly may also connect a holding facility, which may be dimensioned and structured to transfer mature marine life, possibly on an on-demand basis, to the harvesting facility.