Review on Aquarium Gravel & Sand Cleaning Vacuum: Laifoo Siphon for Fish Tank Maintenance by Chris Edwards

Love this siphon! This makes water changes so much easier, I no longer have to shake the siphon up and down and upset the entire tank. It only takes a few clicks to get started. Suction is good, strong enough to pick up large debris but leaves the sandy bottom untouched (unless you stick it in). I've only used it once, but it seems sturdy and well made. This is a good size for my 20 gallon tank.