Abstract: Provided is a system for centralized water monitoring of a fish farm. the system including a plurality of fish tanks divided into a first and a second subgroup; and a first sample conduit only connected to the first of the subgroups through a first set of pipe connections, and a second sample conduit connected only to the second of the subgroups through a second set of pipe connections; each one of the pipe connections being connected to only one fish tank; the pipe connections being configured for water sampling from a selected fish tank of the first subgroup into the first sample conduit and from a selected fish tank from the second subgroup into the second sample conduit. Water samples are received by a first and second sensor system from the first and second sample conduits for simultaneous measurements of the samples by the sensor system.

Abstract: A system is provided for controlling an aquatic habitat. The system for includes a server, a bridge, and a habitat component. The server includes a database containing information associated with a habitat component. The server also includes a communication interface for transmitting operating data for the habitat component. The bridge has a first communication unit configured to communicate with the server communication interface and transmit the operating data received from the server to the habitat component. The habitat component has a second communication unit for receiving operating data from the bridge.

Abstract: A motorless reactor may include a base member, a tubular container, an inlet and an outlet, a pipe, and a head member. The tubular container may define a longitudinal axis extending between an upper end and a lower end, the lower end of the tubular container being coupled to the base member. The inlet and the outlet may be disposed proximate the upper end of the tubular container. The inlet may be configured to receive a pressurized flow of water from a reservoir, and the outlet may be configured to output a mixture of water and a predetermined substance. The pipe may be coupled to the inlet and may extend substantially parallel to the longitudinal axis from a first end proximate the upper end of the tubular container toward a second end proximate the base member.

Abstract: An aquatic environment monitoring system and method that includes correction for adverse conditions in the monitoring system involving the development of confidence levels for certain conditions in the monitoring system using stored information related to the aquatic environment and/or the monitoring system. Corrections to adverse conditions may be made by the environment monitoring system automatically by the monitoring system and manually via communications to a user of the system.

Abstract: An object is to maintain the hydrogen sulfide concentration in rearing water at a constant value without measuring the hydrogen sulfide concentration in the rearing water. The present invention includes: a water tank 10 that stores rearing water W leaving a gas phase at an upper part; a gas sensor 50 to detect hydrogen sulfide gas concentration in the gas phase G; and a hydrogen sulfide supplying means F to supply hydrogen sulfide to the rearing water W based on a detection signal output from the gas sensor 50 so as to maintain a hydrogen sulfide concentration in the rearing water W at a predetermined value.

Abstract: An aquaponic method and apparatus used to raise fish in fish rearing tanks is combined with hydroponic channels for growing crops, in which fertilizer nutrients from the aquaculture effluent are utilized as fertilizer. The aquaponic method and apparatus produce a first water circulation system during the day in which water is repeatedly cycled from a sump, bypassing fish rearing tanks, to a clarifier for removing solids, a degasifier for removing volatile compound, then to the hydroponic channels, and then, back from the hydroponic channels to the sump. The aquaponic method and apparatus also produce a second circulation system during the night in which water is repeatedly cycled from the sump to the fish rearing tanks, from the fish rearing tanks to the clarifier, then from the clarifier to the hydroponic channels and then back from the hydroponic channels to the sump.

Abstract: A dual pump water treatment system for automatically replenishing the water level within a tank of a marine reef aquarium by alternating between a calcium solution reservoir and an alkalinity solution reservoir. The calcium reservoir is in connection with a first pump, while the alkalinity reservoir is in connection with a second pump. The system includes a pair of water level sensors in communication with a solid state relay on a printed circuit board of a switch box. When the water level drops the sensor triggers the relay to turn on the calcium reservoir. When the water level is replenished the first pump is turned off. When the water level drops again, the sensor triggers the relay to turn on the alkalinity reservoir. When the water level is replenished the second pump is turned off. The cycle is repeated based on water level in the tank.

Abstract: A dual pump water treatment system for automatically replenishing the water level within a tank of a marine reef aquarium by alternating between a calcium solution reservoir and an alkalinity solution reservoir. The calcium reservoir is in connection with a first pump, while the alkalinity reservoir is in connection with a second pump. The system includes a pair of water level sensors in communication with a solid state relay on a printed circuit board of a switch box. When the water level drops the sensor triggers the relay to turn on the calcium reservoir. When the water level is replenished the first pump is turned off. When the water level drops again, the sensor triggers the relay to turn on the alkalinity reservoir. When the water level is replenished the second pump is turned off. The cycle is repeated based on water level in the tank.

Abstract: The purpose of this invention is to provide compositions useful for promoting the growth of calcareous organisms present in a closed system aquatic habitat. Particularly, to composition capable of efficiently delivering calcium and carbonate to the calcareous organisms. Most particularly, to a composition effective for enhanced delivery of aragonite to a closed system aquatic habitat where it dissociates into bioavailable supplements, such as, calcium, strontium, magnesium, and carbonate ions, whereby enhanced growth of the calcareous organisms is achieved.

Abstract: The purpose of this invention is to provide compositions useful for promoting the growth of calcareous organisms present in a closed system aquatic habitat. Particularly, to composition capable of efficiently delivering calcium and carbonate to the calcareous organisms. Most particularly, to a composition effective for enhanced delivery of aragonite to a closed system aquatic habitat where it dissociates into bioavailable supplements, such as, calcium, strontium, magnesium, and carbonate ions, whereby enhanced growth of the calcareous organisms is achieved.

Abstract: The aquarium creates a smooth circulation of water flowing through mechanical, biological, and chemical filtration mechanisms. The three filtration mechanisms are housed in a vertical first compartment and a vertical second compartment, both along a back side of the aquarium body, and a lateral third compartment along a bottom side of the body, respectively. A water pump draws water from the third compartment into the second compartment. After a first filtration processes, the water is poured back into the body. Due to the suction of the water pump, water flows from the body into the second compartment to undergo a second filtration process and then enters the third compartment, where a third filtration process is conducted. The water is finally drawn into the second compartment to complete the circulation.

Abstract: Process for reconditioning a hermetic package (12) containing water (14P) and at least one alive aquatic animal (16), in particular intended for aquariums, the aim being to extend the maximum duration of transportation while keeping the animal alive, which includes the following steps: (a) opening the package (12) to access the water (14P) contained in it since the initial packing; (b) replacing all or some of the polluted transportation water (14P) with an unpolluted reconditioning water (26) prepared in such a way as to present physical and chemical parameters analogous to those of the polluted water (14P), and in particular at least a substantially identical pH value; (c) re-closing the package (12) in a leaktight manner in order to permit a further stage of transportation.

Abstract: A composition for conditioning water in an aquarium in order to both control water pH and reduce and/or eliminate chlorine, chloramine and ammonia build-up is provided. The composition includes monopotassium phosphate in an amount between about 10 and 50 weight percent and sodium hydrosulfite in an amount between 1 and 20 weight percent, with the balance being deionized water.

Abstract: The present invention is concerned with agents and processes for the production of biologically advantageous to almost natural maintenance water, especially for aquaria and garden pond water and also from biologically unfavorable to harmful starting water.

Abstract: The present invention provides improvements for indoor closed systems used to raise aquatic life, along with methods to overcome the current problems associated with such indoor closed systems. The present invention provides an aquatic life rearing system which reuses water in the rearing process and does not pollute lakes or streams due to waste water discharge. The improvements include a method of preventing performance degradation of equipment which removes ammonia from the rearing water.

Abstract: A saltwater aquarium environmental control system contains a salt mixing tank and has a specific gravity float switch to maintain proper salinity in the mixing tank so that a ready supply of fresh saltwater is available for replenishing water in the aquarium tank. The system may contain a second specific gravity float switch to monitor the saline concentration in the aquarium tank. The system provides for mixing replenishment saltwater, for automatically dispensing replenishment saltwater at timed intervals in predetermined volumes, and for monitoring and adjusting proper salinity in a saltwater aquarium. A routine exchange of saltwater into and out of the aquarium tank is maintained in order to maintain clean, fresh saltwater in the aquarium tank at all times.

Abstract: Process for controlling growth and/or removing parasites from pond water comprising adding to the pond water peracetic acid and hydrogen peroxide, simultaneously or separated in time, in amounts effective to control and/or remove said parasites.

Abstract: A dietary inclusion model for an integrated aquaculture-hydroponics system is derived from the concept of mass conservation. The model enables the maintenance of near-equilibrium concentrations of Ca, K, Mg, N, and P, suitable concentrations of Mn and Cu, and acceptable accumulation rates of Na and Zn, in representative integrated aquaculture-hydroponics systems, by modifying the mineral concentrations of the fish diets according to the model. The model is readily applicable to virtually any freshwater recirculating fish culture system operating at a recycle ratio sufficiently high to maintain appropriate nitrogen concentrations and having an environment suitable for hydroponic plant culture.

Abstract: A method for purifying water comprising at least one member selected from the group consisting of organic and inorganic particles, involving supplying water to a collection surface forming above an outlet of a filtration apparatus including filler material in an amount sufficient to cause the formation of bubbles in a trickle stream flowing through the filtration apparatus and forming foam on the collection surface by utilizing the bubbles, binding a major part of the at least one member selected from the group consisting of organic and inorganic particles in the foam, and skimming the foam off the collection surface into an area above the collection surface under pressure compensation.

Abstract: A water distribution system is provided having a flow rate in the range of approximately 10 to 30 psi. A chlorinator is provided in line with the water distribution system to dispense a chlorine compound into the water distribution system. Calcium hypochlorite in solid form is placed into the housing of the chlorinator, the chlorinator being used to dissolve the solid calcium hypochlorite in water, dilute it to a desired concentration, and dispense it into the water distribution system at a flow rate in the range of approximately 50 to 3500 gallons/day. The chlorinator comprises a housing having a closed bottom with a fluid inlet and outlet, an open top, and a removable top cover. A flow rate control valve in the internal passage regulates the rate of flow in the internal passage providing fluid communication between the fluid inlet and the housing interior.

Abstract: An agent for controlling parasites on fish consists of an aqueous solution containing more than 1.2 but less than 2.9 g H.sub.2 O.sub.2 per liter. Disclosed are also a method for preparing such an agent and a method for controlling parasites in fish breeding.