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Have you ever been fascinated by the depths of the sea or ocean? Have you ever dived and marveled at the underwater diversity and harmony? If you are one of such people, Ugears offers you a change to bring these feelings to life by assembling our ‘Mechanical Aquarium’ model.

This unique wooden puzzle features two fish chasing each other, as well as a tiny seahorse, observing the action from within algae fronds. The fish and the algae move parallel to each other but in different directions and with different speed, resembling the actual sea life rhythms.

The idea of creating marine aquariums has been around for centuries, with the Romans and the Aztecs making the first recorded attempts. Maintaining the right conditions in such aquariums required frequently changing the water, so most of them were located near the sea or ocean shores. Creating the first ever balanced marine aquarium was credited to Anna Thynne, a renowned biologist, who managed to keep stony corals and seaweed alive in an aquarium in London for almost three years. This experiment of 1846 later inspired the creation of the world-famous London aquarium. As the years went by, technology came to aid the scientists and aquariums grew in complexity, featuring advanced lighting, aeration and filtration systems.

Ugears lovers can now create their own mechanical aquarium without having to deal with all the above expenses and worries. All you need is our model and the desire to put it together!


Unlike the rest of Ugears models, where rubber bands are used, the ‘Mechanical Aquarium’ is wound up with the help of a spring, which means the pieces are able to move for a longer period of time (about 40 seconds) and the mechanism is more durable. Simply wind the knob underneath the aquarium and change the mode of operation from ‘Stop’ to ‘Swim’. The mechanism contains an internal pendulum, which ensures smooth movement of the pieces.

With 325 parts, the model’s difficulty is rated as ‘medium’, meaning that about 6 hours will be required in order to assemble it. No glue or special tools are required and you will get extended exposure to the wonders of moving mechanical parts and gain an understanding of gears, pendulums and spring-action mechanisms.

Like all Ugears models, the ‘Aquarium’ features high-quality plywood boards with laser pre-cut pieces. Everything you need, including the step-by-step color manual, is included in the attractively packaged box.

Get your ‘Mechanical Aquarium’ now and begin this breath-taking underwater adventure!



Dimensions: 14.9 × 6.7 × 1.3 in
Assembled size: 9.3" x 9.3" x 7.9"
Difficulty level: Hard
Estimated time of assembly: 4-8 hours
Number of parts: 325
Tools and materials: Made of high quality plywood; assembly requires no glue or cutting
Recommended Age: 14+

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