This product needs to be connected to an air pump, which produces a bubbling effect underwater, and can float up and down with the accumulation of bubble in the water, beautiful and easy to install.
The treasure chest is sinking in the water. The frogman is suspended in the water by an "iron chain" connected to the treasure chest. With oxygenation, the frogman floats and sways in the water, as if trying to explore the treasure chest. It is very cute and interesting. Add a lot of luster to the aquarium.
