Suitable for glass aquariums, the FRF Magnetic Mag Float Algae Cleaner allows effortless cleaning and removal of algae from aquarium walls.
The strong magnetic feature means that should the interior magnet become detached from the outer control magnet, it is easily retrieved as it simply floats to the water surface.
Mini: 4.2cm x 2.5cm
Small: 6.5cm x 3.5cm
Medium: 9cm x 4cm
Large: 10cm x 5.5cm