1. Increase the dissolved oxygen in water to avoid oxygen deficiency in fish.
2. Helps the growth of aerobic bacteria such as nitrifying bacteria.
3. Inhibiting the growth of anaerobic bacteria such as mold and preventing the occurrence of fish diseases such as water mold.
4. When a fish is sick, it needs to provide a lot of oxygen to help the fish recover.
1. Silent Oxygen Pump(optional): You can choose a silent air pump with corresponding voltage and plug according to your region.
2. Creative Decoration Bubble Stone: Various styles of decorative bubble stones are available for you to choose from, adding oxygen to the water while perfectly decorating your fish tank, creating a unique scenery.
3. Air tube(optional): Standard size trachea with an inner diameter of 4mm.
4. Check Valve(optional): When the air pump is below the water surface of the fish tank, a check valve is required to prevent the water in the fish tank from flowing back into the intake pump when the air pump is turned off.
5. Control Valve(optional): The number of bubbles can be adjusted by adjusting the control valve.
6. Square Bent(optional): When the air tube is bent at 90 degrees, it hinders air transmission, and a square bent can effectively solve this problem.
7. Air Tube Suction cup(optional): The suction cup is used to fix the air tube, keep the fish tank clean, and can also be used to fix electrical wires.
8. Three-way connector(free): Split the air pipe in two and connect the two decorative bubble stones using an air pump. Three-way connectors will be complimentary with purchase of two sets.
1. With advanced air compression system and shock absorption system, with multi-stage silencer design, the air pump has little noise.
2. Using special synthetic rubber component, constant pressure and gas volume.
3. Two versions: EU plug and US Plug
EU plug region:
Korea, Russia, Peru. EU countries such as Germany, France, Netherlands, Denmark, Finland, Norway, Poland, Portugal, Austria, Belgium, Hungary, Spain, Sweden, etc. 
US plug region:
Countries such as the United States, Canada, Japan, Brazil, the Philippines, Thailand, etc.
1. Three submarines in different colors can be fitted with complimentary bubble stone(Please refer to video),can both produce bubbles for oxygen and decorate your fish tank!
2. Bubble stone using super hard gold steel sand, after high temperature sintering, good gas diffusion, good filterability, ozone resistance, corrosion.
3. Increase oxygen levels, lower CO2 and raise PH, creates water currents.
4. For long-term use, if there is dirt blockage, and the bubbles is reduced, please take it out of the fish tank and wash it.
5. Two or more bubble stones can be connected to the same air pump through Three-way connector.
1. Standard size air tube with an inner diameter of 4mm.
2. Good flexibility, resistance to distortion, not easy to deform.
1. The number and size of bubbles can be adjusted by adjusting the volume of gas with the control valve.
2. When the air pump does not have the function of regulating the air volume, the control valve can achieve this function.
1. When the air tube is bent at 90 degrees, it hinders air transmission, and a square bent can effectively solve this problem.
2. Keep the fish tank tube clean and leave more room for the fish to move around.
