Step into a world of serene underwater beauty with Zen Aquarium, the ultimate idle fish tank experience inspired by classic aquarium screensavers. No complex setups, no management stress, just pure visual enjoyment as a thriving aquatic world unfolds before your eyes. Perfect for ASMR lovers, chill gamers, and anyone who wants a peaceful, living desktop companion.

 Disclaimer: Zen Aquarium does not support ultrawide resolutions (21:9, 32:9)

Watch Your Aquarium Come to Life

New fish spawn and gracefully swim through your tank at regular intervals, creating an ever-evolving scene of harmony and tranquility. With simple and unique aquarium setups and many mesmerizing fish species, no two moments are ever the same.

The Ultimate Zen & ASMR Experience

Designed for relaxation and mindfulness, Zen Aquarium offers a soothing escape from the noise of everyday life. Let the gentle motion of fish, the soft bubbling of water, and the ambient aquatic sounds create a perfect stress-free atmosphere.

Endless Combinations, Infinite Possibilities

Customize your perfect aquatic atmosphere with a wide selection of ambient sounds and calming music. Whether you prefer gentle rainfall, soft wind, or even cozy cat purring, Zen Aquarium gives you full control. Mix and layer audio to create a unique soundscape that suits your mood—ideal for subtle background ambiance or full sensory immersion. Every session is a chance to discover a new combination, making each visit to your aquarium uniquely relaxing.

No Stress, Just Serenity

Unlike traditional aquarium sims, Zen Aquarium is all about relaxation, not management. There’s no need to feed fish, clean tanks, or adjust water levels—just sit back, unwind, and enjoy the mesmerizing world beneath the surface.