The present invention relates to an aquarium with a movable filter. According to the present invention, an aquarium with a movable filter includes: a water tank which has a transmission resonance unit connected to AC power supply on the floor surface, has one or more first magnetic bodies arranged around the transmission resonance unit, and has water filling the inside and a floating buoy body which has a density lower than that of water in the water tank and includes a filter for filtering the contaminants in the water, a reception resonance unit receiving the electricity wirelessly transmitted from the transmission resonance unit while being connected to the filter, and second magnetic bodies. The filter of the floating buoy body is operated by transmitting the electricity from the transmission resonance unit to the reception resonance unit in a wireless manner. The first magnetic bodies are magnetized by a magnetic field generated by the transmission resonance unit being supplied with the AC power supply. A magnetic force for pulling the second magnetic bodies can be generated in response to the magnetic field of the first magnetic bodies and the transmission resonance unit. The strength of the pulling magnetic force can be increased to be relatively greater than the strength of the buoyancy force of the floating buoy body, thereby moving the floating buoy body in a downward direction. The strength of the pulling magnetic force can be decreased to be relatively less than the strength of the buoyancy force of the floating buoy body, thereby moving the floating buoy body in an upward direction in the water of the water tank. The filter in the water tank can be wirelessly operated and moved freely in the water tank. The aquarium also can prevent the risk of electric shocks present in a conventional wire connection scheme while filtering the water stored in the same in a uniform manner.본 발명은 이동식 여과기를 구비하는 수족관에 관한 것이다. 본 발명에 따른 이동식 여과기를 구비하는 수족관은, 교류전원과 연결된 송신 공진부를 바닥
