
AQUARIUM: Water Logic Puzzle
Fill the tanks, solve by logic
0 ratings
Free
In-App Purchases
About
Pour water. Match the numbers.
AQUARIUM is a calm logic puzzle where you decide how high the water rises in each tank.
Every puzzle has exactly one answer, so you can think it through without guessing.
■ How it works
- Thick walls divide the grid into tanks
- Water settles at the bottom, and its surface is always level
- The number beside each row and column tells you how many of its cells hold water
- Match every number to solve the puzzle
You'll learn it in a minute, and it keeps getting deeper.
■ Features
- Four levels: Easy 6×6, Medium 7×7, Hard 8×8 and Expert 9×9
- Hard and Expert hide some clues as "·" for a real brain teaser
- A new daily puzzle every day, with streak tracking
- Every board is checked to have exactly one solution
- Tap to switch between water, empty and unknown, or drag to pour
- Optional gravity assist fills the tank below as you go
- My Aquarium: Medaka, Neon Tetras and more join your tank as you solve, and their schools keep growing
- Track solves, best times and average times by difficulty
- Learn the rules on a small interactive tutorial board
■ Perfect if you
- Love Sudoku, nonograms or griddlers and want something new
- Want a few quiet, focused minutes on the commute or before bed
- Prefer a clean, relaxing look over flashy effects
- Enjoy slowly collecting and growing something
■ Privacy
- No account or sign-in
- Your play records stay on your device
- No tracking and no third-party ad networks
- To introduce our other apps, the app may load public information from the App Store. It makes no other network requests
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What's New in AQUARIUM
1.2
October 10, 2026
Now optimized for iPhone Duo and iPad. Minor improvements.
1
Subscriptions & In-App Purchases
$4.99
Premium
Removes ads and unlocks all levels, hints




