Form of the article Wipe Specific uses for the product Plastic, Glass Number of units 1 unit Surface recommendation Glass Contains liquid content Yes About this item Quick Cleaning Brush: The powerful magnetic fish tank cleaner helps you scrape the algae from the aquarium quickly and completely, just drop the scraper side into the water without getting your hands wet or damaging the corals . You will love the feeling of scraping algae from the aquarium. A medium-sized brush is suggested for an aquarium with 0.6-0.75 inch thick glass Floating design: The internal floating brush prevents the brush from sinking into the bottom of the aquarium. It floats in the water and never sinks to the bottom of the tank if separated, making it convenient to take it out of the aquarium Versatile use: the aquarium glass cleaning brush can be not only used in the aquarium, but also for cleaning windows, glass doors and other glass aquariums or various aquariums that will not be demagnetized such as acrylic, glass or plastic Algae scraper: Install a sharp blade as an algae scraper in the brush head that easily removes stubborn marks, even around corners. Anti-scratch cleaning pads inside clean quickly and effectively without scratching aquarium glass How to prevent scratches: Usually this aquarium cleaning brush will not scratch the tank, but it may cause scratches. scratches if the blade has defects or picks up small pieces of sand or gravel between the sides when flipping. So please check the blade before use, do not use it near sand, clean the brush after use