KASANMU Aquarium Magnetic Brush, Easy to Hide Mini Algae Sc, Fish Tank Magnet Cleaner Suitable for Cleaning Glass and Acrylic Tank

I bought this for my fluval spec v, I didn't want a big rectangular one hanging off the side. The magnets are very strong for such a small form factor. It certainly gets the job done, removing algae and micro bubbles after a water change. This magnetic scrubber also easily hides out of sight when not in use because of its small size. It's a perfect alternative to the other brands for nano aquariums.

It came on time.II think the velcro and felt pads are on the wrong half of the magnet.Nether half floats.One sinks like a rock, and the other just slowly drops to the bottom.Those two issues aside, it cleans real realy well, and the magnate is realy strong

This is what a fish tank should have! If you are like me, you don't want to reach out to scrub the aquarium. The fish tank is too dirty. By the time I started cleaning up, I had been procrastinating for a long time, which was disgusting. This little magnetic brush-it's incredible! I have studied for these years and finally decided to give it a try. How it cleans the inside of the glass and how it moves smoothly shocked me. My tank quickly became clean.

This algae scrubber works great! It is small and easy to use and the magnet is powerful if you accidentally lose the "puck i the tank i can sometimes get it back to the glass by putting the puck on the outside of the glass and the scrubber portion clicks to the glass. It is simple and affordable and works great!!

Good quality velcro algae scraper with very strong magnet. It can even go around corners