How it works
1 · Draw your fish
Colour a paper sheet with pencils, or paint one on a phone.
2 · Watch it swim
It's sent to the tank, and a moment later it swims on the wall with all the others.
It swims in our collective tank, after a quick check by a human.
From a sheet of paper to the wall
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Pick a creature
Kids, or grown-ups, choose one of 12 sea creatures to colour. Each one is an A4 sheet to print; click one to download it.
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Colour it
On the paper sheet with pencils or felt pens, or straight on a phone with a finger. Inside the lines or not.
On paper, at our party 
On a phone -
We bring it to life
Paper: scan the sheet or take a photo of it, and send the picture to the tank. Our software recognises which of the 12 creatures it is, cuts it out along its outline and turns it the right way up.
Phone: nothing to scan. Tap “Swim!” and the drawing goes straight to the tank.
Then the tank teaches it to swim. Each species moves its own way: jellyfish pulse, sharks cruise and strike, the octopus ripples its arms, crabs stay on the sand. Now and then a fish does a trick and lights up.
The drawing Cut out, swimming -
Into the tank
It joins all the others in the water. Six backgrounds take turns (coral reef, sunset, Greek ruins, moonlight, submarine, open ocean), the bubbles rising from the sand are real Bitcoin transactions, and you can add your own background music.
The six backgrounds, with our party's fish -
Enjoy the show
The tank is projected on a wall, or shown on a TV, or any screen with a browser. Everyone finds their own creature swimming among their friends'.
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Ready to host your own tank?
Our step-by-step guide covers the kit, the printing and the setup, and gives you a ready prompt if you'd rather let your AI assistant do it.
