Review on 🐠 YCTECH Automatic Aquarium Gravel Cleaner: 6 Watt Filter for Cleaning Gravel, Filtration, Pro Sand Washing, Water Changing, Sludge Extraction, and Dirt Suction - Fish Tank Sand Cleaner by Amanda Reynolds

Unfortunately, the suction power of this gravel vacuum is not enough at all. It doesn't even pick up flakes from the bottom of the tank. The particles are easily picked up, but simply hang in the plastic gravel tray. It was absolutely useless and was a waste of money, time and effort. When I first used it I thought I was doing something wrong but I'm not. I personally think that's bad design. The fan motor module is on the same path as the suction drop. Clogged 20 seconds after use.