An aquarium wall cleaning device and a method for manufacturing the same are provided. The device may include a first flexible member including a main body formed from a flexible buoyant material, a first magnetic or magnetically attractable element disposed within the main body of the first flexible member, and a first layer attached to the main body of first flexible member and having an abrasive surface. The first flexible member may be substantially neutrally buoyant or negatively buoyant in water. The device may also include a second member including a main body, a second magnetic or magnetically attractable element disposed within the main body of the second member, and a second layer having a soft surface attached to the main body of the second member. At least one of the first and second magnetic or magnetically attractable elements may include a magnetic material. The other of the first and second elements may be magnetically attracted to the magnetic material. When the first flexible member and the second member are placed on opposite sides of an aquarium wall and the first and second magnetic or magnetically attractable elements are attracted to one another, the abrasive surface and the soft surface contact respective inner and outer sides of the wall to allow cleaning of at least one side of the wall.
