No tank needed

A virtual aquarium with no glass

Virtual aquarium: a shoal of colourful 3D alien fish from Fish of Ganymede

A virtual aquarium lets you enjoy fish without the water changes. Fish of Ganymede is a free one with a twist: instead of a glass tank, your fish swim in open, dark water under the ice of an alien moon, and you breed them yourself, so no one else has the same fish.

Your deep: an aquarium in 3D

Up to 12 of your fish swim in your deep at once, in full 3D, with fin ripples, glowing lures and drifting marine snow. Feed them glowing krill and they come to eat; tap a fish to follow it, or take a tour past all of them. It runs smoothly on phones, tablets and computers.

A player’s deep in Fish of Ganymede: 3D alien fish swimming in dark water under the ice, with a shoal of small fish
Your deep: every fish you keep swims here in 3D. Tap one to follow it.
Feeding fish in the deep in Fish of Ganymede
Feeding time: glowing krill drift down and your fish come to eat.

More than a screensaver

  • Catch new fish by diving into six ocean zones.
  • Breed them with real genetics and exact odds; eggs hatch in hours, and the young grow up over a day.
  • Collect species in your species book and field guide.
  • Trade with other players, or just enjoy your fish.
Fish of Ganymede on a phone: the deep with fish swimmingThe deep on a phone
The collection screen in Fish of Ganymede with the dive button and diving levelDive and collect
A fish’s detail page in Fish of Ganymede: live 3D view, species name, length, diet and home depthEvery fish has its own page

Other aquarium games and simulators

  • Behind Glass: Aquarium Simulator: design and run realistic home aquariums on PC.
  • Fish Tycoon (2004): a classic fish breeding and shop game.
  • Insaniquarium: a fast, silly arcade aquarium game from PopCap.
  • Live aquarium cams: many public aquariums, such as the Monterey Bay Aquarium, stream their tanks for free.

Which virtual aquarium is right for you?

If you want…Try
A realistic tank to designBehind Glass: Aquarium Simulator
Real fish, liveAn aquarium livestream
Fish you breed yourself, free in the browserFish of Ganymede
Quick arcade funInsaniquarium

Questions

Is there a free virtual aquarium online?

Yes. Fish of Ganymede is a free 3D virtual aquarium in your browser where you keep, feed and breed alien fish. Many public aquariums also stream live fish cams for free.

Do I need to download anything?

No. It plays in any modern browser on phone, tablet or computer, and you can start without signing up.