Review on 🐠 Pawfly 6 PCS One-Way Aquarium Air Flow Control Lever Valve Distributor Splitter Pump Accessories Set: Enhance Fish Tank Aeration with Sturdy Suction Cups by Dawn Thompson

Good control valve but no suction cup! 6 suction cups are of very poor quality. When submerged in water, the suction will merge with the water and after a few days you will see the color change from clear to cloudy. My fish ate the melted plastic and died. I'm not new to the aquarium hobby. After ruling out all possible factors, I ran several experiments to prove that the suction was at fault.