Abstract: An apparatus for dispensing food to an aquarium includes a reservoir, a pump, and a draw line coupled between the reservoir and the pump to draw solution from the reservoir and pass the solution downstream to the pump. The draw line is routed through the pump. A supply line and return line are respectively configured to supply and return water from and to the aquarium. A mixing connection is downstream from the pump and couples the draw line with the supply and return lines. The reservoir, pump, draw line, supply line, return line, and mixing connection are all contained within a refrigerated compartment to keep the aquarium food from spoiling.

Abstract: A fluid pump assembly is used in combination with a container having a wall. The pump assembly comprises a first casing disposed outside the container, a first magnetic assembly including a stationary magnetic drive member non-rotatably mounted to the first casing, a second casing disposed inside the container, and a rotatable second magnetic assembly mounted to the second casing and including a rotatable magnetic driven member drivingly coupled to a fluid motion imparting device. The magnetic drive member comprises electromagnets non-rotatably mounted within the first casing so that the electromagnets are provided to be energized in succession to create a rotating magnetic field for continuously rotating the rotatable magnetic driven member. The second casing is detachably securable to the wall solely by the magnetic attraction force between the magnetic drive member and the magnetic driven member.