boxtech Aquarium Air Stone, Fish Tank Bubble Diffuser High Dissolved Oxygen Airstones for Air Pump Accessoriess with 1 Check Valve, 2 Suction Cup for Aquarium Pond Hydroponic

They are absolutely super cute in the tank. Also, they work very well. I had to use a very flexible air tubing because the regular one would not fit on it. Very happy with my purchase.

When you have an aquarium you know that water aeration is necessary. This boxtech air stone provides the aeration my fish need completely silently and efficiently. It hasn't moved a millimeter from the spot I put it in back when I bought it; the suction cup is holding perfectly. It's a very economical and essential addition to my aquarium setup. Completely happy with it.

I’m using this air stone as part of my DIY CO2 setup because the other CO2 diffusers caused too much back pressure for my system. I was using regular air stones with bigger bubbles until I found this gem! It works great, less pressure needed than the typical CO2 diffusers to create the perfect fine bubbles for my planted tank.

Perfect if you want very fine bubbles in your tank. The glass design looks good in any type of tank and my fish seem to love it!

Has a rain fall effect and is pleasant to listen to as opposed to the whirring of the filter.Update: from the video you can hear this “chirping sound” it is very annoying and I need help diagnosing it. It sounds as the bubbles going through the tube but it didn’t used to make this sound before. Now it does not stop. Please help.