≈ AQUARIUMFRESHWATER TANK

Feed the fish.

Click the water to drop food, or switch to Tap glass.
Each fish responds to hunger and its own temperament.

AQUARIUM

Loading Needle 2…

6 FISH

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Click the water to drop food.

The fish

Fish decisions by Needle 2, from Cactus, running in this browser. Animation in three.js.

Model details ↗

Decisions 0

Average decision —

Last decision —

In progress 0

Needle 2 is a 45M-parameter model in a 13.7 MB file. It downloads once, is cached by the browser, and runs entirely on this device — nothing about the tank is sent anywhere. Until it has loaded, and if it cannot run here, local rules keep the fish moving. Pausing stops new decisions.