Beginner
≈ 1 h 30 minSuggested range45 min – 2 h 30 min
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
BrickHeadz · SET 40545
Koi Fish
Two koi above a small aquatic scene.
- Pieces
- 203
- Release year
- 2022
- Theme
- BrickHeadz
- Set number
- 40545
- LEGO recommended age
- 8+
- Archived regional retail price · Germany
- 14.99 €
Archived regional retail price in the stated market and currency. It does not establish the Italian launch price; no estimated currency conversion. Brickset ↗ · Reference checked on 22 October 2026
Official English name verified at: LEGO English archive ↗ · Checked on 26 October 2026.
TIME TO BUILD
How long does it take to build Koi Fish?
A starting point for planning your build. Times for each experience level are editorial estimates, not measurements submitted by HowLongToBuild users.
Editorial estimate · first build
Intermediate
≈ 1 hSuggested range30 min – 1 h 45 minExperienced
≈ 45 minSuggested range15 min – 1 h 15 minBased on one person building the set for the first time, following the original instructions and using numbered bags where supplied. Includes normal piece-finding and minor adjustments; excludes long breaks, filming, dismantling and modifications. Sources may use different methods. This range is neither a statistical interval nor a limit: your build may take less or more time.
How we estimate times · sources and method
Editorial assessment: Two koi above a small aquatic scene. The supports lift the fish above a blue base decorated with plants. A first build following the instructions, including normal piece finding; an adult may help when needed. Breaks, subsequent play and any alternative models are excluded. For older sets, unnumbered bags or previously mixed pieces may prolong sorting. No verified timed build: indicative values with substantial variation.
Sources do not always specify the builder’s experience. The three experience bands are our editorial assessment, based on the complexity of the set and individual accounts where available.
- LEGO · set-specific instructions ↗
Official name, pieces, age and imagery; no timed building data.
- LEGO · set manual ↗
Document for this set number. The duration is an editorial estimate, not a LEGO timing.
Checked: 26 October 2026 · Method v1.0 · Limited reports; not a statistical average.
BUILT BY THE COMMUNITY
Yours could be the first building time.
0 reviewed solo building times.
No solo building times have been reviewed yet. You can still find editorial estimates under Suggested times.
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Create a free account →BEYOND THE BRICKS
Did you know?
Inside the set
Two fish
The pair contains one larger fish and one smaller fish.
LEGO sourceClear supports
The supports lift the fish above a blue base decorated with plants.
LEGO sourceBeyond the set
The stories, places and inventions behind your build.
Ornamental carp
Koi are ornamental forms of common carp selected for their colours.
Smithsonian National ZooJapanese selection
Modern Japanese varieties descend from selective breeding begun by rice farmers in the nineteenth century.
Smithsonian National ZooWritten by HowLongToBuild · Sources are linked with each story · Checked on 26 October 2026. Historical facts and story details refer to the context described.
THE COMMUNITY’S EXPERIENCE
What was it like to build?
Three separate scores from 1 to 10. For difficulty, 1 means very easy and 10 means very difficult.
No approved ratings yet. Scores are never generated by this site or inferred from the recommended age.
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Specific steps, useful checks and sticking points. Contributions appear after moderation, in their original language. Do not upload instruction pages or personal contact details.
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Sign in to contributeSET THE MOOD
A soundtrack for your build
· Selected for the subject and atmosphere
Uneven rhythmic accents and the quartet’s dialogue create movement without spectacle. A pairing for façades, venues and urban geometry: varied small details inside a recognisable structure.
OUR PICK
Time Out
The Dave Brubeck Quartet
Geometric, bright jazzEditorial suggestions, not official soundtracks for the set. External services may require an account or subscription; editions and availability can vary by country. Suggest another soundtrack →
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YOUR NEXT BUILD
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Sets from the same theme or with similar suggested building times. The ranges shown are for intermediate builders.
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Goofy & Pluto
214 pieces · 10+
30 min – 1 h 45 min
Suggested time · Intermediate
Same theme, a new build
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗