Algae cause toxicity levels to rise in the aquarium water, thus endangering fishes and life forms. Here are some of the best algae scrapers and cleaning tools that you can use to remove those nasty algae from your fish tanks.
Tunze Care Magnet long (220.015) is a large cleaning magnet that glides smoothly, removing and scrapping away those algae on glass. It is suitable for glass thickness from 10mm (3/8") to 15mm (1/2")
Magnavore 4 ER Cleaning Magnet, Algae Removal. Designed for 1/2 and 5/8 inch thick glass and acrylic.
Magnavore 6 ER Cleaning Magnet, Algae Removal. Designed for 5/8 and 3/4 inch thick glass and acrylic.