Perfect water
No cycling, no ammonia, no water changes. The tank stays clear because the simulation wants play, not maintenance.
PIXEL AQUARIUM
click anywhere to drop food
A little browser aquarium that runs on its own. Drop colorful food pellets, switch the scene, and watch the fish evolve, multiply, and make it theirs.
food:
scene:
Feed them Click the water to drop pellets. Fish swim toward food and eat whatever's closest.
Color evolves Pick a food color above and feed consistently. Each meal nudges the fish's hue toward it — keep feeding to breed a whole red tank.
New arrivals Well-fed fish spawn babies that inherit their parent's colors. Up to 20 fish total.
Three breeds Classic, angelfish, and pufferfish swim together. Each has a distinct pixel shape.
Meet the breeds
Classic
compact diamond
Short, stocky body with a clean fork tail. The everyman of the tank — quick to dart, easy to spot.
Angelfish
tall leaf
Towering vertical body, twin trailing tail fins. Glides slowly — claims the upper third of the tank.
Pufferfish
round and chunky
Wider than tall, stubby tail, drifting belly. Doesn't chase — pellets come to it eventually.
What the sim cheats
on purposeA real tank is mostly chemistry and patience. This one keeps the parts that feel delightful and quietly skips the chores.
Impossible overfeeding
Drop food as fast as you like. Pellets are an interaction, not a responsibility, and leftovers vanish before they can become a problem.
One happy habitat
Three pixel breeds share the same water, temperature, and rhythm. Real species are pickier; these just want room to swim.