The present invention is a jetter assembly for cleaning aquaculture nets in situ. The jetter assembly includes a high-pressure rotational union connected to an outer shroud assembly and an inner washing ring assembly. The rotational union includes a hose inlet connected to a fluid hose, a shaft and a plurality of inner ring segments securing the rotational union to the outer shroud assembly. The outer shroud assembly includes several supporting gussets connecting the outer shroud assembly to the rotational union and several inner and outer shroud sandwich plates connecting several shroud sections. The inner washing ring assembly includes a manifold, several spray bars and a centrifugal vortex plate that generates a fluid vortex to clean the nets.

The present invention is a jetter assembly for cleaning aquaculture nets in situ. The jetter assembly includes a high-pressure rotational union connected to an outer shroud assembly and an inner washing ring assembly. The rotational union includes a hose inlet connected to a fluid hose, a shaft and a plurality of inner ring segments securing the rotational union to the outer shroud assembly. The outer shroud assembly includes several supporting gussets connecting the outer shroud assembly to the rotational union and several inner and outer shroud sandwich plates connecting several shroud sections. The inner washing ring assembly includes a manifold, several spray bars and a centrifugal vortex plate that generates a fluid vortex to clean the nets.

An aquarium filtration and algae control system, for use with an aquarium containing a quantity of water, having a housing having a growth chamber and an overflow part. The growth chamber includes at least two cells separated by at least one photocontactor wall. Water from the aquarium is sprayed into each of the cells to create circuitous high velocity water flow and each cell and each photocontactor wall is illuminated by a high intensity light source to promote diatom algae growth within the growth chamber and thereby prevent undesirable algae growth elsewhere in the aquarium.

An aquarium filtration and algae control system, for use with an aquarium containing a quantity of water, having a housing having a growth chamber and an overflow part. The growth chamber includes at least two cells separated by at least one photocontactor wall. Water from the aquarium is sprayed into each of the cells to create circuitous high velocity water flow and each cell and each photocontactor wall is illuminated by a high intensity light source to promote diatom algae growth within the growth chamber and thereby prevent undesirable algae growth elsewhere in the aquarium.

A closed, spherical cage device suitable for farming fish in a position floating in water has a pattern of polygons divided along boundary lines, the boundary lines having tubular elements which together form a spherical skeleton. A plurality of panes are covered by at least one layer of seine net, netting, or the like, the tubular members containing at least one inflatable buoyancy member having fluid communication to a reservoir of pressurized gas. A control unit is arranged to regulate the amount of gas in the buoyancy elements, the pipe elements being connected at nodes by means of sleeves and finger brackets and the pipe elements being arranged to allow inflow of water in the parts of the pipe elements not occupied by the buoyancy element.

A closed, spherical cage device suitable for farming fish in a position floating in water has a pattern of polygons divided along boundary lines, the boundary lines having tubular elements which together form a spherical skeleton. A plurality of panes are covered by at least one layer of seine net, netting, or the like, the tubular members containing at least one inflatable buoyancy member having fluid communication to a reservoir of pressurized gas. A control unit is arranged to regulate the amount of gas in the buoyancy elements, the pipe elements being connected at nodes by means of sleeves and finger brackets and the pipe elements being arranged to allow inflow of water in the parts of the pipe elements not occupied by the buoyancy element.

An aquarium scraper, comprising a scraper head having a top opening and a bottom opening defining a distal end of the scraper head, an outlet opening defining a proximal end of the scraper head, an internal cavity disposed between the ends adapted to receive fluid therethrough, the internal cavity having a first cavity and a second cavity therein, the first cavity in communication with the top opening, the second cavity in communication with the bottom opening and the outlet opening, a handle having a first opening defining a proximal end and a second opening defining a distal end, the handle having an internal cavity disposed between the ends of the handle, the proximal end of the handle arranged to removably engage the proximal end of the scraper head, and a cartridge retractably arranged within the first cavity, the cartridge having a blade removably attached therein and extending therefrom.

An aquarium scraper, comprising a scraper head having a top opening and a bottom opening defining a distal end of the scraper head, an outlet opening defining a proximal end of the scraper head, an internal cavity disposed between the ends adapted to receive fluid therethrough, the internal cavity having a first cavity and a second cavity therein, the first cavity in communication with the top opening, the second cavity in communication with the bottom opening and the outlet opening, a handle having a first opening defining a proximal end and a second opening defining a distal end, the handle having an internal cavity disposed between the ends of the handle, the proximal end of the handle arranged to removably engage the proximal end of the scraper head, and a cartridge retractably arranged within the first cavity, the cartridge having a blade removably attached therein and extending therefrom.

Aquarium cleaning device and method, wherein the device may comprise a body adapted to be held for the cleaning of an aquarium. The body is configured to receive a barrel member at an end of the body, which defines an opening into the body. The barrel member may be inserted into an aquarium and has a hollow center which permits receipt of water or debris from the aquarium. The barrel member may be adapted to receive a variety of cleaning accessories. The cleaning accessories may be of various shapes such that they permit for the same device to be able to access and clean in and around different areas of the aquarium. In addition, at least portion of the barrel and/or an accessory may be flexible to facilitate cleaning of difficult to reach areas of aquarium.

Aquarium cleaning device and method, wherein the device may comprise a body adapted to be held for the cleaning of an aquarium. The body is configured to receive a barrel member at an end of the body, which defines an opening into the body. The barrel member may be inserted into an aquarium and has a hollow center which permits receipt of water or debris from the aquarium. The barrel member may be adapted to receive a variety of cleaning accessories. The cleaning accessories may be of various shapes such that they permit for the same device to be able to access and clean in and around different areas of the aquarium. In addition, at least portion of the barrel and/or an accessory may be flexible to facilitate cleaning of difficult to reach areas of aquarium.