Here is another robot that can keep your aquarium clean without you having to break a sweat. The MOAI robot is controlled via your smartphone. You will be able to put it on a schedule and view a livestream of your fish tank. The robot has real-time navigation and adaptive mapping.
The robot features an ultrasound radar, wide-angle camera, polycarbonate case, cleaning pad, and neodymium magnet. It is currently getting funded on Indiegogo.