A quiet place in your browser with nothing to achieve

A calm digital aquarium that runs in your browser, Sonic Biotope requires no installation and no account.

Watch tropical fish, an eel peeking from its shelter, bubbles, aquatic plants, and gentle water movement on a computer or phone. Tap the aquarium to offer one piece of food.

There are no scores, care obligations, or daily streaks. Leave it open while you work, take a short break, or settle down before sleep.