A system includes a housing; a water tank positioned within the housing, wherein an inside of the water tank is sealed to prevent contact between material forming the water tank and water within the water tank; a water movement subsystem causing water to circulate within the water tank, including a baffle extending along the center of the water tank dividing the water tank into a circular raceway, and a pump causing water to circulate; an aeration subsystem maintaining an oxygenation level suitable for crustaceans to live within the water tank; a temperature control subsystem maintaining a water temperature suitable for crustaceans to live within the water tank; a water quality monitoring subsystem monitoring a water quality parameter of water within the water tank; a feeding subsystem configured to dispense food into the water tank; a biofloc removal subsystem configured to remove biofloc from the water tank; and a control system.

A tank for farming of marine organisms is described, where the tank includes a main chamber to hold the marine organisms and where the tank has further chambers to treat the water before it is circulated back to the main chamber.

Disclosed an aerobic system for decomposition of aqueous organic waste, which comprises at least a first processing container including sides, an upper opening, a substantially horizontal floor, an inlet, an outlet, at least one channel arranged at the floor having an upwardly opening mouth, a ventilating pipe extending above the mouth, and a pump connected to the pipe and arranged to provide a supply of a gas to the ventilating pipe.

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 bubble counter includes a body. The body is provided with a gas inlet, a gas outlet, a cavity, a water inlet, a water inlet channel, a first check valve and a second check valve. An end of the water inlet channel is connected to the water inlet, and another end of the water inlet channel is connected to the cavity. The first check valve is arranged between the gas inlet and the cavity, and the second check valve is arranged at a connection between the water inlet channel and the cavity. The water inlet channel and the gas outlet are independent from each other. With the bubble counter, it is not required to turn off or disassemble the bubble counter, water can be added at any time and gas leakage can be prevented.

The present disclosure provides systems and methods for enhancing production of an aquaculture pond. The systems generally comprise a photo electrolysis array that includes an electrolyzer module and a photovoltaic cell. The electrolyzer module is operable to produce hydrogen and oxygen. A diffuser diffuses the produced oxygen into the aquaculture pond water, thereby increasing the concentration of oxygen in the aquaculture pond.

A recirculating aquaculture system (RAS) is disclosed, which includes a main tank, in which fish or shellfish are farmed; a first reactor fluidically connected to the main tank, wherein the first reactor is a batch reactor that operates under anoxic conditions; a second reactor fluidically connected to the main tank, wherein the second reactor is a moving bed biofilm reactor (MBBR);a feed stream fluidically connected to the main tank; and a data-driven controller operably connected to the first reactor, the second reactor, and the feed stream, wherein the data-driven controller is configured to bring and maintain the system (RAS) at a desired state.

A depuration process is employed for removing off-flavor contaminants from fish through an advanced oxidation process. Before the fish is harvested, the fish is transferred to a depuration tank or zone containing water. Off-flavor compounds leach from the tissue of the fish into the water in the depuration tank or zone. The water in the depuration tank or zone is circulated through an advanced oxidation reactor that, through an oxidation process, reduces the concentration of the off-flavor contaminants in the water.

An oxygen generation device having a compressed air supply device, air cooling coil, a fan, pneumatic valve system, a housing, at least one media insert, an on-off switch, a printed circuit board, and a touch screen. The pneumatic valve system includes an air inlet port, a first air outlet port connected to the inlet of the first media insert, a second air outlet port connected to the inlet of the second media insert. The air inlet port receives compressed air from the compressed air supply device and alternatingly provides the compressed air to one of the first media insert and the second media insert. The lower housing includes check valve ball moveable between the first position and the second position and alternatingly controlling a flow of compressed air through the first media insert and the second media insert.

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.