Set Details
- Set Number
- 31122
- Name
- Fish Tank
- Theme
- Creator
- Year
- 2021
- Pieces
- 352
- Complexity
- Moderate
- Build Time
- 1-2 hours
- Ages
- 8+
- Type
- Play-focused
About LEGO Fish Tank
LEGO Fish Tank (set #31122) is a detailed build with 352 pieces from the Creator theme, released in 2021. The Creator line features versatile sets that can often be rebuilt into multiple models. This is a moderate-level build suitable for ages 8+, with an estimated build time of 1-2 hours.
Set Highlights
- 352 pieces at moderate complexity — a 1-2 hours build.
- Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
- Play-focused build with interactive elements designed for 8+ builders.
Who Is This Set For?
Gift for Ages 8+
The moderate difficulty makes this accessible without being trivial — a well-matched gift for LEGO fans in the 8+ age range.
Weekend Build Project
352 pieces with an estimated 1-2 hours fits comfortably into a focused afternoon or weekend session.
Expanding a Creator Collection
A solid addition for collectors building out their Creator shelf. Introduces parts and builds that complement other sets from the same line.
Build Tips
A five-minute sort by color or piece type before starting saves time hunting for specific bricks mid-step.
Follow the numbered steps in sequence — structural elements early in the build support everything that comes after.
Keep the instruction booklet after building — it's the most reliable reference for disassembly, cleaning, or reassembly after storage.
Finding Instructions
Building instructions for LEGO Fish Tank (#31122) are available as a free PDF on LEGO.com. You can also upload a photo of this set to LegoFinder to identify it and access the instructions directly.
Fish Tank FAQ
Related Reading
More Creator Sets
See all Creator →
Also Released in 2021
All 2021 sets →Similar Build Difficulty
Sets at roughly the same piece count and complexity tier — different theme and year, but a similar build experience.
Need Instructions for Fish Tank?
Upload a photo of your LEGO Fish Tank set and get the building instructions PDF in seconds.
Upload a photo