Review on 🐠 Pawfly 4 Inch Air Stone Disc Bubbler: Enhance Oxygenation in Your Aquarium with this Fish Tank Air Pump Accessory by Raquel Ramirez

I bought these in a pack of two. I followed the directions and soaked for 30 minutes. When I connected them, they had an airline. One bubbled only 1/3-1/2 slice and the other less than 1/3 slice. The instructions state that you should get a larger air pump in this case. I had 3 air pumps so I gave each one my own air pump. These are good dual outlet air pumps designed for 60 gallon tanks. I connected both air pump outlets to the same bubbler. The same surface of the bubbles. I cleaned the stones of dirt as it said on the packaging. Doesn't matter. I wrote to the seller twice, no response. Terrible product and disgusting seller. I would give a start but they work, a little.