Set Facts
- The set includes 4 model fish, a variety of plants and coral, sea worms, an oyster shell with a pearl, LEGO sea snails, and air bubbles.
- Rotating the dials and cranks animates a swimming fish, swaying coral, a crab emerging from a cave, and an opening treasure chest.
- The set is designed to resemble a tropical aquarium suitable for display in the home or workplace.
Regional Retail Prices (LEGO.com/Store)
Tropical Aquarium Reviews
Jays Brick Blog
“LEGO’s mega-sized set is aimed squarely at fishkeeping and aquarium enthusiasts with 10366 Tropical Aquarium, a massive colorful marine fish tank made out of LEGO! This 4,154-piece model features one of the most vibrant collections of colors in a LEGO set, used to build... More brightly coloured tropical fish, coral, anemones and even a crab.”
Brick Fanatics
“At 52cm wide, 36cm tall and 28cm deep, 10366 Tropical Aquarium is a truly massive model, and one that you may struggle to find a space for in your home. It can’t be put up against a wall on its left or right side either, as long as you want access to the set’s moving parts.... More While it is suited to be displayed with its back against a wall, real fish tanks are much more open and, as Matthew explains in the video, the blue backdrop is somewhat complain compared to the rest of the vibrant builds in the aquarium.”
BrickEconomy Expert Review
“The LEGO Icons Tropical Aquarium offers a vibrant underwater display filled with colorful coral, detailed sea life, and moving features like swimming fish and an opening treasure chest. Its large size makes it an impressive centerpiece, though it requires significant space to showcase properly. With new elements and a bold design, it’s a visually striking set for those who enjoy intricate builds and display models.”
Subtheme Analysis
Community Stats
Tropical Aquarium currently ranks #3 out of the top most owned sets in Icons Miscellaneous.
About Icons Miscellaneous

LEGO Icons (formerly LEGO Creator Expert) is a theme focused on more advanced models that includes builds of landmarks, modular buildings, classic vehicles, pop culture builds, and home décor sets. This theme caters to experienced builders looking for intricate and detailed projects, offering a rewarding building experience with high levels of realism and complexity. Each set is designed to provide not just a construction challenge but also a display-worthy model that can be appreciated for its craftsmanship and attention to detail.
Miscellaneous was introduced in 2024 and currently consists of 4 sets.
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Dive into an immersive project with the LEGO Icons Tropical Aquarium (10366) fish tank decor building set for adults. Craft a detailed LEGO interpretation of a vibrant underwater world, teeming with life and striking colors. Arrange each feature for the perfect look and display your creation in the home or workplace for all to enjoy.
This home decor aquarium comes with fun functions. Rotate the dials and cranks to animate a swimming fish, swaying coral, a crab emerging from an underwater cave and an opening treasure chest. The aquarium includes 4 model fish and comes with a variety of plants and coral, sea worms and an oyster shell containing a pearl, plus LEGO sea snails and air bubbles.
Discover a space for relaxation with the inspiring range of LEGO creative building sets for adults. The LEGO Builder app features a digital version of the building instructions included with this DIY craft kit. Set includes 4,154 pieces.
Fish tank decor building kit Take quality...
Description provided by LEGO©