Aquarium is a logic puzzle about filling tanks with water. The grid is split into tanks, and the numbers beside it say how many squares in each row and column hold water. The catch: water lies flat. A tank fills from the bottom up, level all the way across, so you choose how high each tank is filled, not single squares. New to it? Start with the rules, which solve one of the game’s own puzzles step by step, or play a 6×6 right here.
Aquarium
Topics
- Aquarium TechniquesEvery Aquarium puzzle technique on its own page, from water lying flat to what-if, each shown on the same 10×10 puzzle from the game.
Guides
- Aquarium Puzzles for Beginners: Start HereNew to Aquarium puzzles? Follow this path: the rules, your first 6×6, counting lines, how water lies flat, a six-line warm-up with answers, and when to move up.
- Aquarium Rules: How to Play (With Examples)How to play Aquarium: the two rules, how water lies flat in a tank, one of the game's 6×6 puzzles solved step by step, and where to start in any grid.
- How to Solve Aquarium: 6 Techniques That WorkSix Aquarium puzzle techniques, from water lying flat to what-if, how often the game's levels need each one, and an 8×8 from the game solved in three stages.
- Aquarium Puzzle Tips: 8 Tricks to Solve FasterEight Aquarium puzzle tips, measured on the game's 150 levels: start with the 0s and full lines, follow what you just changed, mark dry squares, and watch the tall tanks.
- 6 Aquarium Puzzle Mistakes That Break Your GridStuck on an Aquarium puzzle, or found a number you can't meet? These six mistakes cause most broken grids. How to spot each one, and how to recover.