An aquarium filtering and purifying system includes an upper display tank and a lower filter tank. The water from the upper tank can be delivered to the lower tank to a filter, such as within a surrounding filter fabric or membrane, such as a filter sock. An air tube can also be inserted into the filter tank to an unfiltered side of the filter, such as within the filter sock, to deliver air bubbles into the filter tank. The air tube can have an air stone at the end thereof to diffuse the air bubbles. Further air stones can be provided on an outside of the sock in the first compartment. Filtered water is delivered to a second compartment in the filter tank. The next compartment can have sand, and/or rocks and/or algae and/or a clean-up crew to assist in purifying the water. Water from the second compartment then passes to a third compartment, through a bubble trap, and then is pumped back to the display tank. Alternatively, the first compartment can be provided with a macro algae bed instead of a filter sock.

The present invention relates to fluid pump assemblies in general, and in exemplary embodiments to fluid pump assemblies that are magnetically supported in position, and to related kits and methods useful to circulate water in aquariums. The fluid pump assembly comprises an outer mount, an inner mount, and a pump. The outer mount includes at least one outer permanent magnet; the inner mount includes at least one inner permanent magnet; and the pump includes at least one soft magnetic material. The outer permanent magnet, the inner permanent magnet, and the soft magnetic material collectively form a magnetic circuit.

Provided is a circulating aquaculture facility for saltwater ponds. The circulating aquaculture facility comprises a cultivation tank, a division plate vertically arranged in the cultivation tank to divide an inner cavity of the cultivation tank into a left inner chamber and a right inner chamber; a water inlet pipeline, water in the water inlet pipeline enters the cultivation tank through the left rectangular through hole of the cultivation tank; an outlet pipeline, sewage discharged from the right rectangular through hole of the cultivation tank is capable of entering the outlet pipeline; and an oxygen supply device which delivers oxygen to the inner bottom of the cultivation tank.

Disclosed are livewell systems and methods of operating livewell systems. A livewell system may include a livewell tank having a chamber formed therein, a fill sensor configured to detect a fill level of the chamber, an intake pump configured to selectively convey water into the chamber, and a control unit including a processor and a memory storing instructions. The processor may be configured to execute the instructions to receive a fill signal, determine whether the chamber is filled to a predetermined fill level; and in response to the fill signal and a determination that the chamber is not filled to the predetermined fill level, cause the intake pump to convey water into the chamber.

A filter arrangement for an aquarium is disclosed. The filter arrangement can include a filter housing assembly, a pump assembly, and a transfer tube assembly. In one aspect, the housing assembly and the pump assembly are separately constructed assemblies that are connected to each other via a first dampening member to prevent vibration and sound from being transmitted from the pump assembly to the filter housing assembly. The filter arrangement can further include a second dampening member connecting the pump assembly with the transfer tube assembly to further prevent vibration and sound from being transmitted from the pump assembly to the filter housing assembly. A third dampening member can be provided at a location where the transfer tube assembly is supported within the filter housing assembly to further isolate vibration and sound from being transmitted from the pump assembly to the filter housing assembly via the transfer tube assembly.

A circulation and aeration system 10 for an aquaculture facility including an elongated reservoir for cultivating aquatic species is provided. The system includes a number of vertical manifolds distributed along the length of the reservoir through an interconnecting piping and arranged to generate a number of adjacent rotating liquid flow patterns by injecting aerated water into the reservoir via exhaust ports, wherein each the pattern forms an individual rotating flow cell, and wherein the system further includes at least one airlift pump configured to supply the aerated water into the manifolds. Related facility, methods and uses are further provided.

The disclosure provides an outdoor device for simulating a pond ecosystem comprising a plurality of simulated ponds connected together by pipelines and including an adjusting pool, a plurality of control groups and a plurality of treatment groups with different concentrations; the plurality of control groups and the treatment groups are randomly distributed in the ponds according to a random draw method or a random allocation method, and the adjusting pool is a transfer station for water inlets and outlets of the ponds. According to the device, the plurality of control groups and treatment groups are arranged in a system, achieving a scale of a middle-scale pond ecological simulation system, which can stimulate an actual complex hydrostatic ecological system including a plurality of aquatic macrophytes, algae, zooplankton, benthos and microorganisms, and evaluate the effects of the complex ecological efficiency caused by chemical pollutants entering an actual water body.

A fluid-dynamic pump which is suitable for circulating water in an aquarium includes a rotary device, an electric motor configured to move the rotary device, a pump body which houses a printed circuit board which that controls the electric motor and a temperature sensor that detects the temperature of the water of the aquarium. The temperature sensor is positioned on the pump body.

Portable and interchangeable marine tiles, marine pods and tanks are disclosed. The marine tile typically contains a first face, a second face, and one or more sites for supporting one or more marine organisms, such as coral, and. may contain a tracking device. The marine pod typically contains a first panel having a first slit and a second panel having a second slit. The first panel and the second panel can be interlocked via sliding the first slit into the second slit. The marine pod can have one or more marine tiles attached thereto. The marine tank typically contains one or more coral reef organisms. Water can be pumped into and through the marine tank to flow in the form of a river stream. Typically, the flow of the seawater is controlled such that a consistent temperature is maintained in the marine tank.

A peristaltic pump is provided for conveying a fluid pumping medium through a compressible hose. The pump is designed particularly for use in an aquarium, terrarium, or vivarium for metering fluids accurately and reliably by eliminating permanent tubing deformation and random stopping positions of rollers.