A photobioreactor device for growing photosynthetic organisms, organisms that feed on photosynthetic organisms and hydroponics is disclosed. The device may include a lighting system integrated around the circumference of the device. In embodiments, a cap configured to seal the container has ports configured to permit passage of fluid out of or into a container without removing the cap. In some embodiments, organisms are grown in a disposable bag secured between the cap and the container.

The invention comprises a method, a device and a fish-farm for controlling the concentration of living organisms in fluid in order to facilitate the handling of the organisms such as grading and counting. Said apparatus comprises a first in-feed channel for a flow of living organism in a fluid (1), a second in-feed channel for a flow of fluid (2), a chamber (4) containing a lever (11) for regulating the flow from the first and the second in-feed channel through the chamber, an outlet (15), and a computer, wherein a sensor (9) is positioned in the first in-feed channel for detecting the density of living organism in the flow, and wherein the computer continuously and automatically regulates the ratio of flow from the first and the second in-feed channel through the chamber and towards the outlet by the lever in response to the density of living organism in the flow determined by the sensor.

A biopellet reactor for marine aquariums. The invention is functionally dependent upon a unique fluidizing plate located between the water inlet port at the base and the media reaction chamber above. This fluidizing plate converts the upward momentum of the incoming water stream into a cyclonic flow in the reaction chamber. This cyclonic flow completely suspends and fluidizes the biopellets within the reaction chamber

A biopellet reactor for marine aquariums. The invention is functionally dependent upon a unique fluidizing plate located between the water inlet port at the base and the media reaction chamber above. This fluidizing plate converts the upward momentum of the incoming water stream into a cyclonic flow in the reaction chamber. This cyclonic flow completely suspends and fluidizes the biopellets within the reaction chamber

An overflow system is disclosed for use with a tank having a side wall. The overflow system includes an overflow device having a front wall, a back wall, a first sidewall and a second sidewall all secured to a bottom wall and extending upward therefrom to create a chamber having an open top. The front wall, back wall and first and second sidewalls have a plurality of slots formed therethrough. The overflow device is positioned in the tank such that a portion of the plurality of slots is disposed below the fluid line of the tank so as to receive fluid from the tank into the chamber. The bottom wall has an enlarged aperture formed therethrough. The overflow system also includes a first aperture formed through the sidewall of the tank. The first aperture is positioned below the bottom wall of the overflow device. An attachment mechanism attaches the bottom wall of the overflow device to an inside surface of the sidewall of the tank. The attachment means passes through the first aperture.

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.

Pond filter unit and a method for operating a pond filter unit (1). A control unit (12) controls the operation of the pond filter unit (1), including the cleaning cycle of the filter (2′, 2″, 2′″). The pond filter unit (1) further comprises one or more plugs (14) for connecting one or more auxiliary devices, such as a separate pump, one or more additional pond filter units, illumination devices/lamps, air pumps, and/or feed automats. The control unit (12) of the pond filter further controls the one or more auxiliary devices connected to the plugs (14), such as pumps, air pumps, automatic feeding devices based on input settings for each of the one or more auxiliary devices. The control unit (12) further controls the cleaning cycle for cleaning of the filter (2) in the vessel (3). The cleaning cycle comprises a sequence of backwash and/or a mechanical filter cleaning sequence where a filter cleaning motor unit (6) rotates the filter cleaning device (7) in the vessel. During backwash, the valve (8) directs the water to the waste water outlet (11). The filter unit allows to control the one or more auxiliary devices by the pond filter control unit (12), and to coordinate the control of the additional devices in relation to the control of the filter.

Pond filter unit and a method for operating a pond filter unit (1). A control unit (12) controls the operation of the pond filter unit (1), including the cleaning cycle of the filter (2′, 2″, 2′″). The pond filter unit (1) further comprises one or more plugs (14) for connecting one or more auxiliary devices, such as a separate pump, one or more additional pond filter units, illumination devices/lamps, air pumps, and/or feed automats. The control unit (12) of the pond filter further controls the one or more auxiliary devices connected to the plugs (14), such as pumps, air pumps, automatic feeding devices based on input settings for each of the one or more auxiliary devices. The control unit (12) further controls the cleaning cycle for cleaning of the filter (2) in the vessel (3). The cleaning cycle comprises a sequence of backwash and/or a mechanical filter cleaning sequence where a filter cleaning motor unit (6) rotates the filter cleaning device (7) in the vessel. During backwash, the valve (8) directs the water to the waste water outlet (11). The filter unit allows to control the one or more auxiliary devices by the pond filter control unit (12), and to coordinate the control of the additional devices in relation to the control of the filter.

A system and method of sustainable aquaponics that vertically integrates unique aquaponic system designs with alternative aquaculture fish feed sources, fingerling production methods, alternative aquaculture/farmed fish grow out models, and green energy sources that yield organic produce in the form of fruits and vegetables. A raceway system serves as the hub for grow-out throughout the warm and cold months. During the summer months, fish can be spawned and fed for steady growth, while during the winter months, the fish continue to grow at slower quite acceptable growth rates. Plants like legal (licensed) cannabis for medical use can be grown in plant areas near the raceways with very high yields. The system may also be used to reclaim gray water using the biology of the system to purify it for agricultural use.

A system and method of sustainable aquaponics that vertically integrates unique aquaponic system designs with alternative aquaculture fish feed sources, fingerling production methods, alternative aquaculture/farmed fish grow out models, and green energy sources that yield organic produce in the form of fruits and vegetables. A raceway system serves as the hub for grow-out throughout the warm and cold months. During the summer months, fish can be spawned and fed for steady growth, while during the winter months, the fish continue to grow at slower quite acceptable growth rates. Plants like legal (licensed) cannabis for medical use can be grown in plant areas near the raceways with very high yields. The system may also be used to reclaim gray water using the biology of the system to purify it for agricultural use.