air stone – intank - to prevents anything other than water entering tube.
air valve (control nozzle) - outlet - to control the flow rate.
suction cups - to fix the airline tubing on the tank.
How to use?
1. Put the air stone into the tank, open the air valve, and then slowly immerse the entire airline tubing in the water. 2. After the airline tubing is filled with water, pull the air valve out of the water and tighten it. 3. Fixed the airline tubing on the tank. 4. keep the air valve above the shrimp container. 5. Open the air valve and let water flow through it. 6. Start syphoning water from your aquarium to the shrimp container.
