ThePuzzleLabs

Printable Aquarium puzzles

Aquarium grids formatted for paper. Fill each aquarium with water to a level so that the numbers outside the grid are satisfied. Water fills from the bottom and is level across the full width of each aquarium. Thick borders mark aquarium boundaries. Use your browser's Print function to save as PDF. Answer keys are at the bottom.

Tip: choose "Save as PDF" in your print dialog.

Aquarium - Easy (6×6)

Fill aquariums with water so each row and column matches its clue number. Water fills from the bottom and stays level across each aquarium.

4
4
4
3
3
4
6
6
6
4
0
0

Aquarium - Medium (8×8)

Fill aquariums with water so each row and column matches its clue number. Water fills from the bottom and stays level across each aquarium.

1
2
2
2
4
4
4
4
8
0
0
0
3
4
4
4

Aquarium - Hard (10×10)

Fill aquariums with water so each row and column matches its clue number. Water fills from the bottom and stays level across each aquarium.

1
2
2
2
2
3
3
3
3
3
9
10
5
0
0
0
0
0
0
0

Aquarium - Expert (12×12)

Fill aquariums with water so each row and column matches its clue number. Water fills from the bottom and stays level across each aquarium.

4
3
3
3
3
3
2
3
2
2
2
2
1
12
12
7
0
0
0
0
0
0
0
0

Aquarium - Einstein (15×15)

Fill aquariums with water so each row and column matches its clue number. Water fills from the bottom and stays level across each aquarium.

3
3
3
4
2
3
5
5
5
5
5
5
5
4
3
0
0
0
0
0
0
0
0
0
2
11
11
12
12
12

Answer keys

Answer Key - Easy (6×6)

4
4
4
3
3
4
6
6
6
4
0
0

Answer Key - Medium (8×8)

1
2
2
2
4
4
4
4
8
0
0
0
3
4
4
4

Answer Key - Hard (10×10)

1
2
2
2
2
3
3
3
3
3
9
10
5
0
0
0
0
0
0
0

Answer Key - Expert (12×12)

4
3
3
3
3
3
2
3
2
2
2
2
1
12
12
7
0
0
0
0
0
0
0
0

Answer Key - Einstein (15×15)

3
3
3
4
2
3
5
5
5
5
5
5
5
4
3
0
0
0
0
0
0
0
0
0
2
11
11
12
12
12
Play Aquarium online · Rules & how to play