Algae layers on the aquarium glass not only obstruct the view into the aquarium but can often only be removed by reaching into the water or when changing the water. With a magnet cleaner, however, the glass can also be cleaned quickly and easily from the outside. The Sera Magnet Cleaner Floating is a classic magnet cleaner that is characterized by its floating properties, among other things: If the inner part detaches during cleaning, it floats upwards on its own and can be removed from the aquarium without any problems. This also minimizes the risk of sand or fine gravel being trapped in the cleaning surface of the magnet. The outer magnet is covered with fine velvet and reliably protects the outside of the glass aquarium.Sera Magnet Cleaner Floating+ magnet cleaner for aquariums+ floating inner part for easy handling+ removes biofilms and algae layers quickly and thoroughly+ additional cleaning function on the long side+ also ideal for nano tanks with curved windscreen corners+ ergon