Tropical Aquarium (LEGO 10366)

About this set

This is the Tropical Aquarium (LEGO 10366) from the LEGO Icons line, listed at 4154 pieces in our inventory with a 5/5 difficulty rating, so it sits at the larger, longer-build end of the range. The model reads as a fish tank with a black-bordered frame, and the frame is what gives it that aquarium-on-a-desk silhouette; the display area sits inside it. The color palette covers black, blue, orange, purple, green, yellow and brown, with blue carrying the water background while orange, purple, yellow and green spread across the coral reef and tropical fish, and brown anchoring the treasure chest and rock base. Structurally it breaks into a few zones: the bubble backdrop builds the depth of the water, the coral reef is the most branch-heavy section, the tropical fish are separate sub-builds, and the treasure chest works as a bottom accent. A practical order is to finish the black frame and water backdrop first, then sort the coral reef by color in batches, and finally attach the fish and chest in place, which keeps you from hunting through dense multicolor parts. With 4154 pieces and 5/5 difficulty, it suits builders who have finished mid-size sets and want a large display model, especially those into ocean subjects and sorting colorful parts.