Review on 🧲 Highly Efficient KASANMU Aquarium Magnetic Scrubber: Perfect Algae Remover for Small Fish Tanks and Saltwater/Freshwater Aquariums by Chelsea Hunter

At first I was hesitant to buy it because some people reported that it scratched the glass but I had no problems. The magnet strength is pretty good and you can go around corners very easily to get to each side. I had quite thick seaweed in places so it took a bit of effort to get it completely clean (of course it doesn't just magically erase). It's a great size for my 20 gallon tank and much easier for routine maintenance than it was before I bought it.