Premium Quality Elegant Look Air Pump From Mashki, As Soon As You Receive Your Parcel Unwrap Gently And Connect The Air Pipe To The Two Outlets And The Other End With The Air Stones. You Can Fix If You Want To Control The Airflow To The Tank Low, Medium High Level Air Flow. Just Switch Your Air Pump To Power, The Air Bubbles Will Give More Attraction And More Air To Your Lovely Fishes. You Can Place The Air Stone Between Plants, Rocks And Other Aquarium Decorations Which Will Give More Style And Attraction To Your Fish Tank, You Will Enjoy Watching Your Aquarium Never Wet Or Use This Air Pump In Water. Keep The Air Pump Above Your Fish Tank Water Level. Clean Or Replace The Air Pipe Regularly To Have Better Passage For Air Flow You Can Wash Gently The Air Stones Also To Remove Dirt From It. If You Are Keeping It Below You Fish Tank Water Level, You Must Use Check Valve. You Can Run It For 24 Hours. Air Pumps Are Useful For Tank Water Aeration And Filtration Also. You Can Use This Air Flow Which Comes In The Air Pipe For Action Toys And Other Fish Tank Decoration Which Give More Fun And Style To Your Fish Tank Viewing Do Not Move The Air Pump While Its Running -- Switch Off The Power And Relocate It. You Need Not Use Any Oil Or Grease For This Air Pump Place The Air Pump On A Thin Cushion Or Piece Of Cloth Which Stables The Air Pump Movement. There Are Big Size Air Pumps Also Available For Bigger Tanks. The Bigger Air Pumps You Can Fix Many More Air Pipe For More Action Toys In Your Big Size Fish Tank.