Review on 🐠 U-BCOO Manual Aquarium Gravel Cleaner and Water Changer - Fish Tank Siphon Filter for Effective Cleaning and Water Change in Tanks by Christine Chase

This is very useful and works well. If this is your first time starting a thread, it's perfect. I have trouble stopping a thread and then trying to start it again, but if you just let it run the first time, that's great. The only thing not great is that it's not easy to clean. The best way I've found is to put it in clean water and vacuum it to clean it. In addition, the siphon head can easily fall off.