Fluval Algae Magnet is specifically designed for Fluval EDGE aquariums. The Algae Magnet enables you to clean the inside of the aquarium’s glass without getting your hands wet. Its slim design is ideal for hard to reach areas, such as beneath the gravel line, behind heaters, around rocks and decorations. A large internal scrubbing pad makes it easy to see what you’re cleaning. Powerful magnets ensure a tight grip and non-abrasive cleaning pads will not scratch the glass surface. It also has a specially designed floating magnet retriever.