A system for indoor shrimp aquaculture is described that comprises a plurality of stacked raceways, each raceway being a long, flat rectangular tank comprising at least two sections arranged in series and scaled to accommodate shrimp of increasing size. The sections are separated by a moveable section divider whereby shrimp may be transferred between sections once they reach a predetermined size by opening the moveable section divider and allowing the shrimp and water to flow through into the next section. Each raceway includes a waste collection assembly situated at the downstream end of each section for collecting waste for removal. Methods of using the system to grow shrimp are also provided. The raceways are further adapted to facilitate operation of the production module at large scales, in this way; the system is scaleable to achieve high-throughput production of shrimp.

An algae preventive device for prevention of algae buildup in an aquarium is presented. The algae preventive device is useful for eliminating algae growth on all surfaces. Also, the algae preventive device is useful for keeping water clear and can be used on ponds, pools and aquariums. The algae preventive device does not impact fish or plant life and does not require testing of water, high-grade filers and media, lighting modification or chemicals.

An impeller for use in an aquarium filter pump includes a shaft and a plurality of impeller blades radially extending from the shaft. Each of the impeller blades includes opposite blade faces. A depression is in each of the blade faces and aids in pushing the water. The depression can be a variety of shapes and can have its deepest portion along one of the edges of the blade.

An air-powered filter for an aquarium includes a base component configured to be coupled to a surface of the aquarium, the base component including a suction cup. The air-powered filter also includes a filter component releasably coupled to the base component, the filter component including a filter housing having at least one opening. The air-powered filter also includes a decorative feature coupled to the base component, the decorative feature configured to cover and disguise at least a portion of the air-powered filter.

A controllable semi-open mariculture cabin system is provided, including a mariculture cabin, a water inlet mechanism, a filtering mechanism, and a fish outlet pipe. The water inlet mechanism includes a water inlet pipe and a plurality of high-pressure water inlet pipes. The water inlet pipe is located on one side of an upper part of the mariculture cabin. The plurality of high-pressure water inlet pipes are distributed in a circumferential direction of a top of the mariculture cabin. Tail ends of the high-pressure water inlet pipes are connected to jet pipes extending into the mariculture cabin. The filtering mechanism is arranged at the bottom of the mariculture cabin. An outlet end of the filtering mechanism is located in sea water outside. The fish outlet pipe is provided on a cabin wall of the mariculture cabin. A gate valve capable of opening and closing is mounted on the fish outlet pipe.

An aquarium filter and a method of indicating reduced flow through the filter. The aquarium filter includes a first chamber, a second chamber, and a filter cartridge separating the first chamber and the second chamber. A first flow path is defined through the filter cartridge separating the first chamber and the second chamber. The aquarium filter also includes spillway defining a second flow path and an indicator positioned in the second flow path.

A shipping container that includes a greenhouse mounted above an aqueous tank or tanks. Aquaponics fruits and vegetables grow in greenhouse in vertical and horizontal grow systems, while fish are grown in the tanks. Water flows between all plants and fish with no soil. The system is run by a computer automation system which operates on data obtained by various sensors and control components that include automated control valves, fish feeders, temperature and water flow measurements. The container can be operated from an established grid or can run off-grid with solar or other renewable energy sources. Part of the water needed for the system can be collected from rainfall. All necessary components except for the water, fish and plant seedlings are delivered in the shipping container.

An energy efficient aquaculture system combining mixed-cell and raceway configurations. The system comprises a raceway tank, a raceway channel, a first water purification subsystem, and a second water purification subsystem. The system may include one or more of a hatching subsystem, a nursery subsystem, a feeding subsystem, a finishing subsystem, and a fish pumping system for transfer of fish between raceway tanks. A method of growing fish for commercial production using the aquaculture system is also provided.

An aquarium includes a first chamber arranged to contain a first volume of liquid, a dry chamber that is adjacent the first chamber and defines a second volume, and a removable element at least partially disposed within the dry chamber. The removable element is selectively removable from the dry chamber. The aquarium also includes a filter at least partially disposed within the removable element, and a pump including an intake and an outlet. The intake is arranged to draw a flow of liquid from the first volume of liquid during pump operation. The aquarium also includes a tube having a first end connected to the outlet and a second end movable between a first position in which the flow of liquid passes through the filter and is then discharged into the first volume and a second position in which the flow of liquid flows directly into the first volume.

Bio-filter unit (1) intended for a fish farming system, said bio-filter unit (1) comprising a container (2) with a filter media (3) and an inner architecture, said inner architecture comprising at least one vertical tube (5) having an open input end (6) and an open output end (7), wherein the bio-filter unit (1) is connected to a pump (8) enabling pumping liquid and filter media (3) from a bottom (9) of the container (2) against a top (10) of the container (2) through said at least one vertical tube (5), wherein an upper plate (15) is arranged inclined downwards from and around the open output end (7) of the at least one vertical tube (5) and ends at a distance from a wall (13) of the container, wherein the upper plate (15) Is perforated and wherein a regeneration water outflow (16) is arranged under the upper plate (15).