1.6 Inch Air Stone, Aquarium Air Stone, Air Stone for Fish Tank and Hydroponics Air Pump

These are some of the only air stones that actually sink and don't require a suction cup. Running two in an aerogarden and they work great. They're quality material too. They don't disintegrate into dust like some other brands.

These are the best air stone I have ever bought. They put out plentiful and fine bubbles. They are heavy so they do not float out of position. If I ever need air stones again I will be buying these.

I'd question using >1 on a single air line with others following the 1st. The 1st looks and works great even as the stone is getting dirty. The 2nd was always never equal to 1st and at least 50% less bubbles. And now it's dirty no bubbles at all. Maybe a stronger air pump is needed. But disappointing I can't enjoy more than one.

For the longest time, I felt my angelfish were probably oxygen-deprived because they breathed harder than other angelfish I saw in YouTube videos. I vacillated between buying these airstones and the fancy $12 glass one that clings to the inner aquarium wall near the top. For all intents and purposes, the airstone works. I'd say it took about two hours to see its effect on the fish, so I'm happy about that. I may buy a valve/limiter for the air tube later because it'll cut down on the bubbling noise which, I'm sure, must disturb the fish.

Been wanting a new bubbler for a while and I’m glad I found these they are beautiful

Not enough volume but it’s my fault should have gotten bigger ones

Great stones

Buen material

Great stones for hydroponics

Medium size bubbles. I can recommend it.

The media could not be loaded.  Nice effect, all four airstones used on one pump. I'm happy with the result ☺

Perfect size for 20 gallon tank air bubbles flow out nicely

Macht was es soll, es blubbert viele kleine bluber