Osaka Aquarium Kaiyukan has an aquarium cleaning robot with a twist. The robot not only cleans, it also monitors the fish and provides live video feed for visitors.

"Most large institutions have cleaning problems, and most of them keep the ‘dirty work’ hidden from sight. They prefer to do their cleaning in the middle of the night when it’s totally invisible to the general public. But an Osaka aquarium with a unique set of circumstances thought completely out of the box and is turning their cleaning ‘problem’ into a new way to attract and please visitors."