The aquarium, housed in Tokyo Skytree – Japan’s tallest structure – has been closed since the start of March and its garden eels have become used to a largely human-free environment.
But the aquarium said the “unprecedented situation” had had put the eels and other creatures ill at ease.
“Here is an urgent request,” the aquarium wrote.
“Could you show your face to our garden eels from your home?” it said, naming the event a “face-showing festival”.
“‘When you gaze at the garden eels, the garden eels gaze at you.’ Understood.