Review on 5-in-1 Aquarium Gravel Cleaner Water Changer Glass Scraper Fish Tank Sand Wash Pump Kit with Air-Pressing Button and Adjustable Water Flow Controller Clamp for Effective Fish Tank Gravel Cleaning by Kristen Jain

I really like this thing. It has an extension tube that you can add for deep tanks. The tube is small enough to go around and behind the decor. The suction start mechanism works fine (if it doesn't start picking up water you'll need to empty the filter basket of dirt) - hopefully it will hold up over time. The hose is flexible to prevent the bucket from tipping over. It's easy to use and I prefer it to other vacuums I've used in the past.