Small Acrylic Aquarium Algae Scraper Cleaner | Magfloat Floating Magnetic Fish Tank Magnet Cleaning Scrubber Brush Tool for Freshwater Saltwater Marine Reef Tanks

Item Weight: 9.07 g Item Form: flat Target Species: Fish About this item WHAT SIZE TANK - The Small size Mag-Float is recommended for use with acrylic aquariums sized up to 30 gallons, with surface thicknesses measuring 3/16".