All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
Nano-materials: Made through high-temperature firing, they are pollution-free and do not harm the health of fish. It has a long service life and theoretically will not malfunction. If the air output is uneven, it is due to algae. After cleaning, it will return to normal operation.
Before use, let air stone to maintain 45 degrees, the air inlet in the upper, into the water, soak for 24 hours. Then connected to the air pump to use, will get the best results. After the bubble stone is used for 24 hours, the bubbles will become even more delicate.
An 2W air pump is required.(Air Pumps Not Included)Using a more powerful air pump can produce more bubbles.
Accessories:1.4Inch air stone*1,3Ft air tubing,2*suction cups, 1*Y connector,1*8 to 4 connectors and 1 reverse-flow valve.
The air stone become yellow or green because algae have grown inside. As long as there is air and light, algae will grow in the air stone. Soak it in 84 disinfectant solution, then clean and dry it thoroughly. After that, it will be able to resume normal operation.