Review on TERA PUMP Electric Fish Tank Water Pump: Submersible Pump with Hose & Filter Suction Tube by Sasha Holmes

Liked it - does a good job of removing water and dirt from the otherwise difficult to access aquarium bowl. Tried a few other things and that was the only thing that worked. Note that if you're pumping water from a tank that's taller than the one you're pumping water into, turning it off won't stop the flow - it will create a siphon and water will flow until you remove the pump head from the water. Taking off a star because it doesn't fit the opening of a standard 5 gallon water jug, so I can't use it to pump freshly mixed salt water into the main tank. As already mentioned, it removes "old" water very well.