DESKTOP AQUARIUM / Coming soon

A little ocean. A different pace.

Let your desktop breathe.

Whale sharks drifting past. A quiet café after hours. Sixteen living worlds, just beyond your screen.

Find your aquarium ↓

01 / 04 · Churina Blue

01 / THE COLLECTION

Big oceans. Small escapes.

Eight grand aquariums and eight home & café tanks. Pick a view that feels like you.

02 / LITTLE RITUALS

Life, at your own pace.

01 /

A gesture. A little connection.

Rub your cursor back and forth to scatter food. Watch nearby animals moving that way gather to eat.

02 /

Leave a little clearer.

Algae grows gradually on the glass. Sweep your cursor across it to reveal the view, one patch at a time.

03 /

From morning blue to midnight.

Let the lighting follow your day, or keep your favorite hour. Place and style the clock right in Home.

04 /

Made for your desktop.

A native macOS renderer, layered scenery and still previews in Home. Music is there when you want it.

03 / MACOS RESOURCES

macOS resources

Wallpets macOS reference

CPU usage0.4%-2.3%Average

RAM usage35-92MBmacOS

These figures are published for Wallpets, not measurements of Walltank. Walltank 0.6 measured 5.59% average CPU and 209.02 MiB physical footprint with one aquarium running at 30 fps (M4 Pro, 24 GB, macOS 26.6.2, Debug; 20 one-second samples). Usage varies by scene, display and settings.

Source: Wallpets ↗

04 / KEEP THE VIEW

Keep every color.

Explore all 16 scenes for free with a text watermark. After 5 minutes, animals and scenery become silhouettes. Every Apply to Desktop restarts the 5 minutes.

Remove Watermark

$1.99 USD

One-time purchase · No subscription

Planned US$1.99. Local prices and taxes appear in the store. macOS and Windows purchases are separate.

Download on theMac App Store

Get it fromMicrosoft Store

A few things to know.

05 / GOOD TO KNOW

Can I try every aquarium?

Yes. All sixteen are available in the free app. Remove Watermark removes the text and timed silhouette effects.

Does it need the internet?

Aquariums work offline. Radio, feedback, purchases and restoring purchases require a connection.

Are these real aquariums?

These are fictional, artist-created scenes inspired by the ocean. Walltank is not affiliated with real aquarium operators.

When can I download it?

The Mac App Store and Microsoft Store releases are being prepared. The macOS app is under development; Windows will follow.