Wooden 3D puzzle Mechanical Aquarium from Ugears. DIY model kit. No glue needed. Fish swim without batteries. The perfect gift idea for all ages.
The Mechanical Aquarium from Ugears is an ingenious saltwater aquarium, with two pet tropical fish chasing each other around a forest of macroalgae fronds, inside of which hides another small inhabitant of the marine environment—a seahorse! The fish and algae rotate simultaneously and in parallel, at different speeds and in different directions, simulating the smooth, undulating rhythms of underwater plant and animal life. The elegant fish look like they are really swimming as they move their heads and tails side-to-side.
To set the model in motion, wind the knob under the aquarium with approximately 25 half-turns, flip the switch from "STOP" to "SWIM" mode, then watch as your Mechanical Aquarium comes to life! The mechanism contains an internal pendulum to regulate and smooth the movement. We have designed this model to be the very definition of operational simplicity for users: one switch, two modes. You can stop the model at any time, or just let it go and enjoy the movements of the automaton fish and fronds for about 40 seconds.
