Aquarium Logic Puzzle

Aquarium is a logic puzzle about water. Each grid is split into tanks. Fill them so that every row and column holds exactly the number of water cells shown by its clue.

HOW IT WORKS
• Water sinks to the bottom of each tank, with no gaps underneath.
• Water in a tank is always level: if one cell in a row of a tank holds water, that whole row of the tank does.
• The numbers beside each row and column tell you how many water cells it holds.
• Use the clues to work out which tanks fill, and how high.

WHAT'S INSIDE
• 1,040 puzzles in eight themed packs, from Easy to Legendary
• Grids from a quick 5x5 up to a big 15x15
• A new daily puzzle every day, with a streak counter
• Puzzle Rush: solve as many puzzles as you can before the clock runs out
• Hints that always help: they point out mistakes, explain the next step, or show you a cell. 25 free to start, and more for watching a short video
• Undo, swipe to fill several cells at once, zoom for big grids, light and dark themes
• Plays offline
• Optional one-time purchases to remove ads or get unlimited hints

If you like nonograms, sudoku or other grid logic puzzles, Aquarium gives you a fresh set of rules to master. Start with a small tank and work your way up to the Legendary grids.