Mag-Float Small Floating Magnet Aquarium Cleaner Glass Acrylic up to 5mm (L60 x W35 x H52mm)

Mag-Float Small Floating Magnet Aquarium Cleaner Glass Acrylic up to 5mm (L60 x W35 x H52mm)Mag-Float Small Floating Magnet Cleaner for Glass (3mm). The original floating magnet cleaner is suitable for fresh or saltwater glass aquariums. Easily cleans away nuisance algae without getting your hands wet Powerful neodymium magnets create a strong magnetic coupling between the two halves If the magnets become separated the cleaning magnet floats to the surface for easy retrieval. Suits glass thickness up to 5mm Dimensions overall: L60 x W35 x H52mm.