An aquarium includes a tank body and a water pump, wherein the water pump includes a stator and a rotor and the tank body includes a tank wall； a rotor chamber arranged at one side of the tank wall close to inside of the tank body and configured to accommodate the rotor； a rotation shaft configured to support the rotor and arranged in the rotor chamber； an impeller configured to connect with the rotor and arranged in the rotor chamber； and a stator chamber configured to accommodate the stator, arranged at one side of the tank wall close to outside of the tank body and arranged corresponding to the rotor chamber so that the stator can drive the rotor.
