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PixelTank Aquarium

For Mac and Apple TV

A calm, living reef on your screen.

PixelTank turns your Mac or Apple TV into a 3D saltwater aquarium. Coral sways, clownfish tuck into their anemone, tangs cruise open water, and every fish swims its own way, so the tank never plays out the same twice.

Download on the App Store

Free download · PixelTank Pro is a one-time purchase

  • Mac and Apple TV
  • 13 reef species
  • Camera that dives
  • No ads, no tracking
A bright PixelTank reef: rock arches, purple and orange coral, a pink anemone and a dozen tropical fish over white sand.
PixelTank on a Mac, in Bright lighting.

Dive

Let the camera swim the reef.

Turn on Dive and the camera glides through the tank like a diver, drifting past coral and slowing down to watch the fish. Leave it on and PixelTank dives by itself whenever the controls are hidden.

It makes a quiet backdrop for a desk, a living room, a lobby or a waiting room.

Dive view close to the coral, with a pink anemone in front and the tank's side glass reflecting the reef.
Dive view, close to the coral.

Meet the fish

Click a fish to say hello.

On the Mac, click any fish to swim in close and read about its species: how big it grows, where it lives and something worth knowing about it. Click open water to zoom back out.

An emperor angelfish in close-up beside its species card, with air-stone bubbles rising.
The emperor angelfish and its species card.

Apple TV

A window into the sea for the living room.

On Apple TV the reef fills the whole screen in 4K. Use the remote to bring up the controls, start a dive, pick species or change the lighting, then let it run.

The reef on Apple TV with a curtain of bubbles rising behind the fish.
Bubble curtain on Apple TV.
The reef on Apple TV in dimmer Moody lighting.
Moody lighting for the evening.

Make it yours

Your tank, your way.

  • Choose how many fish swim, from one to a busy reef, and mix the species you like.
  • Soft, Bright or Moody lighting, with light rays and shimmering water.
  • An air stone or a full bubble curtain.
  • Shuffle the fish for a fresh tank in one click.
  • Gentle water sounds, or silence.

Included

  • Clownfish
  • Blue tang
  • Yellow tang
  • Copperband butterflyfish
  • Emperor angelfish
  • Royal gramma
  • Blue-green chromis

Plus a cleaner shrimp on the sand, and coral, anemones and plants throughout.

With PixelTank Pro

  • Seahorse
  • Lionfish
  • Mandarin dragonet
  • Banggai cardinalfish
  • Firefish
  • Yellow watchman goby

Pro is a one-time in-app purchase, with no subscription. It also lets you add your own logo and a short message, which suits a shop window or waiting room, and removes the PixelPop logo. Bought it before? Restore Purchases brings it back.

The details

Private by design.

PixelTank has no account, no ads and no analytics. Your settings, species picks, logos and messages stay on your device, and purchases are handled by Apple.

Requires macOS 14 Sonoma or later (Apple silicon or Intel) or tvOS 18 or later (Apple TV HD or Apple TV 4K).

PixelTank support · Privacy policy · [email protected]