Dive into Creativity!
Build Your Own 3-in-1 Aquarium

Create a vibrant fish tank, an artistic easel, or a pirate's treasure chest with 352 colorful pieces! Endless building possibilities await with this LEGO Creator set.

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🏛 Creator 3-in-1
Set #31122

Fish Tank

The Fish Tank is a delightful and colorful Creator 3-in-1 set.

🏆 Best For: Perfect for families and LEGO fans looking for a relaxing and visually appealing build ⏱ 4.5 hr build 🧩 352 pcs 🎂 Ages 8+
★★★★☆ 4.0

The Fish Tank is well-received for its vibrant colors, clever design, and relaxing building experience. Some find the alternative builds less appealing than the main model, but overall it's considered a delightful and visually pleasing set.

📝 Our Take

The Fish Tank is a delightful and colorful Creator 3-in-1 set. It perfectly captures the serene beauty of an underwater world with cleverly designed fish and plant life. The set offers a relaxing building experience and a charming display piece.

This set is perfect for LEGO enthusiasts of all ages, especially those who appreciate aquatic themes. The build is engaging but not overly complex, making it suitable for both beginners and experienced builders. The vibrant colors and detailed fish make it a visually appealing display piece.

Skip this if you are looking for a challenging, complex build or a large-scale LEGO model. If you prefer more intricate builds, consider the LEGO Botanical Collection or a larger Creator Expert set instead.

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How does the Fish Tank compare to other LEGO aquarium or aquatic-themed sets? What are some creative ways to display the Fish Tank in a home or office setting? Is the Fish Tank a good set for beginner LEGO builders? How does the 3-in-1 feature enhance the value and playability of the set?

🧱 Building Experience

🧩
352
Pieces
4.5h
Build Time
📊
Beginner
Difficulty
📏
13cm × 22cm × 11cm
Dimensions
Build Highlights:
  • Creative use of LEGO elements to represent various fish species
  • Engaging techniques for building underwater plants and coral
  • Bright and vibrant color palette creates a visually stunning display
  • Offers three different build options for extended play and display possibilities

📈 Investment Analysis

→ Price stable
B+
Investment Grade
⏳ Active
The Fish Tank set is retired, increasing its potential as an investment. Its moderate piece count and appealing subject matter make it attractive to collectors and casual LEGO buyers. The Creator 3-in-1 theme generally holds value well, and this set's charming design may lead to increased demand over time. However, its relatively low piece count might limit significant appreciation compared to larger, more exclusive sets. Consider that the broader LEGO market can influence returns.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

📖 About This Set

Kids can dive into their own underwater adventures with this LEGO® Creator 3in1 Fish Tank (31122) buildable toy. The glassless tank boasts 5 different vibrant fishes: a clown fish, a regal blue tang, a yellow tang, a cardinal fish and an anthias fish, as well as a mini submarine, some coral and an aquatic plant.

A playset with 3 times the fun!
This LEGO Creator 3in1 set offers 3 brilliantly detailed models to build and play with. Kids can create a Fish Tank toy packed with cool fish, then rebuild it into an easel or treasure chest toy, or even use their imaginations to create something new!

Creative gifts to inspire imaginative play
LEGO Creator 3in1 buildable toys offer amazing value with 3 different models to create in every box! LEGO builders will be thrilled by the array of fun possibilities. Creator 3in1 occupies kids for hours with a great selection of sets, including space shuttles, fun-filled fairgrounds and action-packed castles.

  • Kids can enjoy 3 times the fun with this brilliant LEGO® Creator 3in1 Fish Tank (31122) playset featuring 3 models in 1 – a toy Fish Tank, easel and treasure chest.
  • The Fish Tank toy includes 5 different colorful fish, a submarine, some coral and an aquatic plant so kids can stage their own fun stories.
  • The toy easel comes with a colorful parrot in a frame, but creative kids can also rearrange the bricks and pieces to create their own painting.
  • The treasure chest opens and closes and isaccompanied by a brick-built crab and seagull, plus a sword to add even more swashbuckling fun to kids’ pirate adventures.
  • The ideal reward for LEGO® fans aged 8 and up who have a passion for building colorful, action-packed models.
  • The Fish Tank toy measures over 5 in. (13 cm) high, 8 in. (22 cm) long and 4 in. (11 cm) deep – the perfect size to play with at home or proudly display in a bedroom.
  • Look out for other great new-for-2021 LEGO® Creator 3in1 sets: Space Shuttle Adventure (31117), Ferris Wheel (31119) and Medieval Castle (31120).
  • The fun lasts longer with LEGO® Creator 3in1 sets as kids can create exciting stories around the 3 different models in every box.
  • Since 1958 LEGO® building bricks have been made from high-quality materials to ensure they consistently connect and pull apart every time.
  • LEGO® building bricks meet stringent global safety standards.

Compare Similar Sets

Compared to other Creator 3-in-1 sets, the Fish Tank offers a unique and visually appealing building experience centered around an aquatic theme. While some larger Creator sets may offer more complex builds, the Fish Tank stands out for its charming design and display potential. It's a great alternative to larger, more expensive aquarium-themed sets.

📦 Full Parts Inventory - 85 unique parts • 334 total pieces

Slope Curved 2 x 1 No Studs [1/2 Bow] Slope Curved 2 x ...
Part #: 11477 Yellow
Slope Curved 2 x 1 No Studs [1/2 Bow] Slope Curved 2 x ...
Part #: 11477 Dark Pink
Slope Curved 2 x 1 No Studs [1/2 Bow] Slope Curved 2 x ...
Part #: 11477 White
Slope Curved 4 x 1 Inverted Slope Curved 4 x ...
Part #: 13547 Yellow
Plate Special 1 x 2 5.9mm Towball Socket Plate Special 1 x...
Part #: 14418 Light Bluish Gray
Tile Round 2 x 2 with Bottom Stud Holder Tile Round 2 x 2 ...
Part #: 14769 Bright Pink
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Plate Special 1 x...
Part #: 15573 Orange
Brick Round 2 x 2, Pin Holes Brick Round 2 x 2...
Part #: 17485 Yellow
Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Plate Special Rou...
Part #: 18674 Dark Tan
Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Plate Special Rou...
Part #: 18674 Dark Blue
Plant, Flower Stem with Bar and 6 Stems Plant, Flower Ste...
Part #: 19119 Green
Tile Round 1 x 1 with Hollow Bar Tile Round 1 x 1 ...
Part #: 20482 Black
Plate Special 1 x 2 with End Towball Plate Special 1 x...
Part #: 22890 Dark Bluish Gray
Plant, Leaves 6 x 5 Plant, Leaves 6 x 5
Part #: 2417 Lavender
Slope Curved 2 x 1 Inverted Slope Curved 2 x ...
Part #: 24201 Bright Pink
Plant, Leaves 4 x 3 Plant, Leaves 4 x 3
Part #: 2423 Bright Pink
Wedge Plate 2 x 2 Left Wedge Plate 2 x 2...
Part #: 24299 Black
Wedge Plate 2 x 2 Right Wedge Plate 2 x 2...
Part #: 24307 Black
Plate 2 x 12 Plate 2 x 12
Part #: 2445 Tan
Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end Brick Round 1 x 1...
Part #: 25214 Yellow
Bracket 1 x 2 - 1 x 4 [Rounded Corners at Bottom, Square Corners at Top] Bracket 1 x 2 - 1...
Part #: 28802 Light Bluish Gray
Brick 1 x 1 Brick 1 x 1
Part #: 3005 Yellow
Plant, Sea Grass Plant, Sea Grass
Part #: 30093 Bright Green
Brick Special 1 x 2 Palisade [aka Log] Brick Special 1 x...
Part #: 30136 Light Bluish Gray
Rock 1 x 1 Jewel / Gem 24 Facet Rock 1 x 1 Jewel ...
Part #: 30153 Trans-Red
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Yellow
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Magenta
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Orange
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Black
Plate 1 x 2 Plate 1 x 2
Part #: 3023 10× Blue
Plate 1 x 2 Plate 1 x 2
Part #: 3023 10× Medium Azure
Plate 1 x 1 Plate 1 x 1
Part #: 3024 Black
Plate 1 x 1 Plate 1 x 1
Part #: 3024 Coral
Plate 1 x 1 Plate 1 x 1
Part #: 3024 Yellow
Plate 1 x 1 Plate 1 x 1
Part #: 3024 Blue
Plate 1 x 1 Plate 1 x 1
Part #: 3024 White
Plate 6 x 12 Plate 6 x 12
Part #: 3028 Tan
Brick Round 2 x 2 Dome Top, Hollow Stud Brick Round 2 x 2...
Part #: 30367c Tan
Brick Round 2 x 2 Dome Top, Hollow Stud Brick Round 2 x 2...
Part #: 30367c Trans-Clear
Slope 45° 2 x 2 Slope 45° 2 x 2
Part #: 3039 Dark Bluish Gray
Slope 45° 2 x 1 with Bottom Pin Slope 45° 2 x 1 w...
Part #: 3040b Yellow
Brick Round 1 x 1 Open Stud Brick Round 1 x 1...
Part #: 3062b Trans-Clear
Brick Round 1 x 1 Open Stud Brick Round 1 x 1...
Part #: 3062b Tan
Tile 2 x 2 with Groove Tile 2 x 2 with G...
Part #: 3068b Black
Tile 1 x 2 with Groove Tile 1 x 2 with G...
Part #: 3069b Yellow
Tile 1 x 2 with Groove Tile 1 x 2 with G...
Part #: 3069b Black
Tile 1 x 1 with Groove Tile 1 x 1 with G...
Part #: 3070b Black
Slope Inverted 45° 4 x 1 Double with 1 x 2 Recessed Slope Inverted 45...
Part #: 32802 Black
Plate Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Plate Round 1 x 1...
Part #: 32828 Bright Light Yellow
Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side Brick Special 1 x...
Part #: 32952 Tan
Plant, Carrot Top Plant, Carrot Top
Part #: 33183 Bright Light Orange
Plate 1 x 3 Plate 1 x 3
Part #: 3623 Yellow
Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Slope Inverted 45...
Part #: 3660 Black
Slope Inverted 45° 2 x 1 Slope Inverted 45...
Part #: 3665 Yellow
Bracket 1 x 1 - 1 x 1 Inverted Bracket 1 x 1 - 1...
Part #: 36840 Black
Bracket 1 x 1 - 1 x 1 Bracket 1 x 1 - 1...
Part #: 36841 White
Plate 2 x 10 Plate 2 x 10
Part #: 3832 White
Cone 4 x 4 x 2, Axle Hole [Plain] Cone 4 x 4 x 2, A...
Part #: 3943b Dark Turquoise
Antenna 1 x 4 with Flat Top Antenna 1 x 4 wit...
Part #: 3957b Trans-Clear
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Plate Round 2 x 2...
Part #: 4032a Black
Brick Special 1 x 1 with Headlight Brick Special 1 x...
Part #: 4070 Orange
Tile 1 x 8 with Groove Tile 1 x 8 with G...
Part #: 4162 Black
Technic Pin 1/2 Technic Pin 1/2
Part #: 4274 Light Bluish Gray
Technic Axle Pin with Friction Ridges Lengthwise Technic Axle Pin ...
Part #: 43093 Blue
Dish 3 x 3 Inverted [Radar] Dish 3 x 3 Invert...
Part #: 43898 Yellow
Dish 3 x 3 Inverted [Radar] Dish 3 x 3 Invert...
Part #: 43898 Magenta
Bracket 1 x 2 - 2 x 2 Bracket 1 x 2 - 2...
Part #: 44728 18× Black
Brick Special 1 x 1 Studs on 4 Sides Brick Special 1 x...
Part #: 4733 Dark Bluish Gray
Brick Special 1 x 1 Studs on 4 Sides Brick Special 1 x...
Part #: 4733 Lime
Dish 2 x 2 Inverted [Radar] Dish 2 x 2 Invert...
Part #: 4740 Yellow
Dish 2 x 2 Inverted [Radar] Dish 2 x 2 Invert...
Part #: 4740 Red
Brick Special 1 x 1 with Studs on 2 Sides Brick Special 1 x...
Part #: 47905 Tan
Brick Special 1 x 1 with Studs on 2 Sides Brick Special 1 x...
Part #: 47905 Dark Pink
Brick Special 1 x 1 with Studs on 2 Sides Brick Special 1 x...
Part #: 47905 White
Brick Special 1 x 1 with Studs on 2 Sides Brick Special 1 x...
Part #: 47905 Black
Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Bar 1L with Clip ...
Part #: 48729b Dark Bluish Gray
Brick Round 3 x 3 Dome with Center Stud Brick Round 3 x 3...
Part #: 49308 Magenta
Slope Curved 3 x 1 No Studs Slope Curved 3 x ...
Part #: 50950 Black
Brick Special 1 x 2 with Studs on 2 Sides Brick Special 1 x...
Part #: 52107 Orange
Brick Special 1 x 2 with Studs on 2 Sides Brick Special 1 x...
Part #: 52107 Black
Slope 30° 1 x 1 x 2/3 (Cheese Slope) Slope 30° 1 x 1 x...
Part #: 54200 Orange
Slope 30° 1 x 1 x 2/3 (Cheese Slope) Slope 30° 1 x 1 x...
Part #: 54200 Black
Slope 30° 1 x 1 x 2/3 (Cheese Slope) Slope 30° 1 x 1 x...
Part #: 54200 Blue
Slope 30° 1 x 1 x 2/3 (Cheese Slope) Slope 30° 1 x 1 x...
Part #: 54200 White
Slope 30° 1 x 1 x 2/3 (Cheese Slope) Slope 30° 1 x 1 x...
Part #: 54200 Trans-Dark Pink
Slope 30° 1 x 1 x 2/3 (Cheese Slope) Slope 30° 1 x 1 x...
Part #: 54200 Yellow
Cone 1 x 1 [Top Groove] Cone 1 x 1 [Top G...
Part #: 59900 Yellow
Brick Arch 1 x 3 x 2 Curved Top Brick Arch 1 x 3 ...
Part #: 6005 Black
Plate Round 4 x 4 with Pin Hole Plate Round 4 x 4...
Part #: 60474 Orange
Plate Round 4 x 4 with Pin Hole Plate Round 4 x 4...
Part #: 60474 Red
Plate Special 1 x 2 with Handle on End [Closed Ends] Plate Special 1 x...
Part #: 60478 Black
Plate 1 x 12 Plate 1 x 12
Part #: 60479 Dark Azure
Slope 65° 2 x 1 x 2 Slope 65° 2 x 1 x 2
Part #: 60481 Light Aqua
Brick Curved 1 x 2 x 1 1/3 with Curved Top Brick Curved 1 x ...
Part #: 6091 Yellow
Brick Curved 1 x 2 x 1 1/3 with Curved Top Brick Curved 1 x ...
Part #: 6091 Blue
Brick 1 x 12 Brick 1 x 12
Part #: 6112 Black
Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Plate Special 1 x...
Part #: 61252 Dark Bluish Gray
Technic Pin with Friction Ridges Lengthwise with No Center Slots Technic Pin with ...
Part #: 61332 Black
Plate Round 1 x 1 with Solid Stud Plate Round 1 x 1...
Part #: 6141 Trans-Clear
Cone 3 x 3 x 2 Cone 3 x 3 x 2
Part #: 6233 Dark Pink
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Technic Pin Conne...
Part #: 65487 Black
Plate Round 1 x 1 with Open Stud Plate Round 1 x 1...
Part #: 85861 Trans-Light Blue
Plate Round 1 x 1 with Open Stud Plate Round 1 x 1...
Part #: 85861 Yellow
Slope 30° 1 x 2 x 2/3 Slope 30° 1 x 2 x...
Part #: 85984 Black
Tile 2 x 4 with Groove Tile 2 x 4 with G...
Part #: 87079 14× Black
Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm] Plate Special 1 x...
Part #: 88072 Light Bluish Gray
Brick Arch 1 x 3 x 2 Brick Arch 1 x 3 x 2
Part #: 88292 Black
Plate 2 x 14 Plate 2 x 14
Part #: 91988 Black
Brick Round 2 x 2 Truncated Cone Brick Round 2 x 2...
Part #: 98100 Dark Pink
Brick Round 2 x 2 Truncated Cone Brick Round 2 x 2...
Part #: 98100 Dark Turquoise
Tile Round 1 x 1 Tile Round 1 x 1
Part #: 98138 Blue
Tile Round 1 x 1 with Offset Black Eye Print Tile Round 1 x 1 ...
Part #: 98138pr0008 10× White
Plant, Flower 2 x 2 - Round [Solid Stud] Plant, Flower 2 x...
Part #: 98262 Yellow
Bracket 1 x 2 - 2 x 2 Inverted Bracket 1 x 2 - 2...
Part #: 99207 30× Blue
Bracket 1 x 2 - 1 x 2 Inverted Bracket 1 x 2 - 1...
Part #: 99780 Red
Bracket 1 x 2 - 1 x 2 Inverted Bracket 1 x 2 - 1...
Part #: 99780 10× Dark Azure
Bracket 1 x 2 - 1 x 2 Bracket 1 x 2 - 1...
Part #: 99781 Blue
Bracket 1 x 2 - 1 x 2 Bracket 1 x 2 - 1...
Part #: 99781 Dark Bluish Gray
The set features a good selection of blue and black brackets, useful for various building techniques. The printed round tiles add unique detail to the fish designs.

💎 Notable Parts

Blue Bracket 1 x 2 - 2 x 2 Inverted (30x) $4.50
Black Bracket 1 x 2 - 2 x 2 (18x) $2.70
Black Tile 2 x 4 with Groove (14x) $2.80
White Tile Round 1 x 1 with Offset Black Eye Print (10x) $5.00
Dark Azure Bracket 1 x 2 - 1 x 2 Inverted (10x) $3.00
Est. BrickLink Part Value
$18.00

💡 MOC Potential

🌳 Tropical reef scene with more diverse coral and fish
🏙 Aquarium exhibit for a modular city layout
🚢 Submarine or underwater exploration vehicle

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📖 Building Instructions 6

Fish Tank Instructions
BI 3101, 60, 31122 2/3 V29
Download PDF
Fish Tank Instructions
BI 3101, 60, 31122 2/3 V39
Download PDF
Fish Tank Instructions
BI 3101, 52, 31122 3/3 V29
Download PDF
Fish Tank Instructions
BI 3101, 52, 31122 3/3 V39
Download PDF
Fish Tank Instructions
BI 3106, 64+4, 31122 1/3 V29
Download PDF
Fish Tank Instructions
BI 3106, 64+4, 31122 1/3 V39
Download PDF

Charts Inventory Statistics

85
Unique Parts
334
Total Pieces
0
Minifigures
Inventory Version: 1