After letting folks with black thumbs have a greenhouse full of “plants,” LEGO now wants people who are interested in rearing fish to do so without the hassle of changing water or buying fish feed. Folks, meet the LEGO Icons Tropical Aquarium Building Set (10366), an aquarium with absolutely zero maintenance.
With the 10366, you own a vibrant underwater world, teeming with imaginative details and playful charm without the extra baggage. It is truly a build-and-forget aquarium. Absolutely no strings attached. And neither is there life.
Actually, that part is not quite true. There are dials and a crank that can rotate to animate swimming fish, sway coral, make a crab emerge from an underwater cave, and open the treasure chest. So it will have some life if you are willing to do the work. This brick-built aquarium boasts four model fish, a variety of plants and coral, sea worms, an oyster shell with a pearl, sea snails, and even air bubbles to create the illusion of water. Spoiler alert: you do not need water.
All told, the set packs a whopping 4,154 pieces to let you create an aquatic centerpiece measuring 36 cm high, 52 cm wide, and 28 cm deep (over 14 inches by 20.5 inches by 11 inches).
If you are interested in this faux aquarium, you will want to purchase it between November 13 and 18, 2025, because during that period, you will qualify for a gift-with-purchase (GWP) of a LEGO Icons Fish Tank Filter & Fish Food (5009823) to go with your lovely LEGO fish tank.
The LEGO Icons Tropical Aquarium Building Set (10366) is set to be available on November 13 for Early Insiders Access, and to everyone else starting November 16. It is a made-for-adult-fans-of-LEGO set, commanding a steep US$479.99.
Images: LEGO.
