Goldfishies: A Browser Tab That Is Just an Aquarium

Goldfishies is an aquarium in a browser tab. Fish swim from one side to the other, turn around, and swim back. Click on the water and food drifts down, and they come over and eat it. Then they go back to swimming. This continues indefinitely, and there is no next step.

It is one of the last genuinely calm things left on the internet.

What is Goldfishies?

It comes from aBowman, a developer who spent the late 2000s and early 2010s building a small menagerie of interactive creatures for the web: fish, koi, a cat, a rabbit, various things that reacted to your cursor and did absolutely nothing else. These were widgets in the original sense, the kind of object people embedded on personal pages and blog sidebars back when a blog sidebar could contain a fish.

That whole ecosystem is largely gone now, taken out by the death of browser plugins and the general professionalization of the web. Goldfishies survived the transition. It runs as a plain web page, needs nothing installed, and does exactly what it did before.

The tank itself is unfussy. A soft gradient of water, a few fish in oranges and whites and blacks, gentle acceleration as they move, a slight turn of the body as they change direction. The animation is good enough that you stop noticing it is animation, which is the only test that matters for this kind of thing.

What makes it stick is the interaction, which is exactly one gesture long. Click and food falls. The fish notice, adjust course, and converge on it. There is a small, entirely disproportionate satisfaction in watching them come. You did that. It is the lowest-stakes possible act of caretaking, and it turns out the brain accepts it anyway.

Crucially, there is no simulation underneath. Nothing gets hungry. Nothing dies while you are in a meeting. The tank does not send notifications, does not track a streak, and will not guilt you into returning. It is a virtual pet with the anxiety removed, which is to say it is not really a virtual pet at all. It is a moving picture you can poke.

That absence of mechanics is the design. Every other idle thing on your screen wants something from you: engagement, retention, a daily check-in. Goldfishies is content to be ignored. Leave it open behind your work for a week and it will still be swimming, unresentful.

What can you do with Goldfishies?

• Watch the fish. This is the primary feature and it holds up longer than it has any right to.
• Feed them. Click anywhere on the water to drop food and watch the tank reorganize itself around it.
• Run it full screen. Hit F11 or the equivalent and the browser furniture disappears, leaving nothing but water.
• Park it on a second screen. A spare monitor, a tablet on a desk or an old laptop turns into a quiet aquarium with zero setup.
• Use it as a focus anchor. Something slow and non-verbal to look at between tasks, without the fifteen-minute cost of opening a feed.
• Leave it running. Nothing needs your attention, so there is no penalty for forgetting it exists.

Tips to get the most out of it

Feed sparingly. Dropping a huge amount of food at once turns the tank into a scrum. One click, then wait. The unhurried version is the good version.

Full screen it on a spare device. This is where Goldfishies stops being a novelty and starts being useful. An old tablet standing on a desk running nothing but fish is a genuinely pleasant object.

Mute your expectations, not your speakers. There is no soundtrack here to speak of, which means you can pair it with something else entirely. Ambient noise underneath a silent tank is a better combination than either alone.

Do not treat it as a task. The temptation with anything resembling a pet is to check in and maintain it. Resist. The whole value of this tank is that it makes no claims on you.

Keep it in a pinned tab. It weighs almost nothing, it survives being ignored for hours, and it is a much better thing to flick to than the app you would otherwise open.

If you like Goldfishies, also try…

• Orb Farm: a tiny sealed ecosystem you actually can tinker with, sand and water and shrimp included.
• A Soft Murmur: layered ambient sound to put underneath the tank.
• Window Swap: another quiet window onto something happening somewhere else.
• Whale Follow Mouse: a single large sea creature, your cursor, and no further instructions.

More gentle nonsense in Weird & Wonderful, and more things to keep in the background over in Music & Audio.