Mag-Float Floating Magnet Glass Aquarium Cleaner - Large+

Large+ - Up to 400 gallons --split-- Benefits: 1. Easy removal of algae from glass/acrylic surfaces.2. No longer knock over decorations, damage corals and invertebrates.3. No longer get your hands submerged into the water of the fish tank.4. Time/money saver on maintenance.5. Large cleaning surface area makes the job quick and efficient.6. Stays free of debris.7. Can be maintained attached to aquarium surface.8. Strong, high-quality neodymium rare earth magnets.9. Magnet does not lose strength over time.10. Easy retrieval of inner magnet. Compatible Tank size: 400 Gallons