RESUN Magnetic Brush is specially designed to clean algae and other materials off the glass of your aquarium. The Algae Magnet can be left in a corner of the aquarium, ready for use whenever necessary.
Size is 10 x 3.5cm
RESUN Magnetic Brush Directions;
Hold the part fitted with the scraping tape against the glass on the inside of the aquarium. Hold the other against the outside at the same place. Slowly move the algae magnet to scrape clean the glass and to remove the algae. When the algae magnet is dirty, simply rinse with running water and scrub clean.