Elite 1-Inch Cylinder Air Stone

I've had these for a few months now and they are still working great. One tip though, let them soak in your aquarium for at least 10 minutes before you turn your pump on. I use mine with this pump Tetra 77854 Whisper Air Pump, 60-Gallon which comes with a couple of knobs to regulate air flow for less/more bubbles. I did not notice any manufacturer deffects on these stones, they are well made and like I said, they have been working 24/7 for a few months with not a single issue. I haven't noticed any chipping or breaking.

The stones fit standard airline tubing. Once you open the pack, place any unused stones in a ziplock back to keep them from collecting dust.

All in all, a great value. Durable, reliable, low priced.

These things are sooo tiny! I don't know why, but I was expecting something on the bulbous side of one inch, but these are quite tiny and of course make a ton of bubbles.

For fresh water applications, this product deserves 4 stars. This assumes that you attach the airstone once (don't constantly connect and disconnect the airline tubing from the stone).

When you receive a box of these airstones and first connect them, your impression might be an automatic 5 stars. The water will be bubble-rich. If you run these airstones for a couple weeks and need to disconnect them from their airline, you'll realize they have a 50/50 chance of completely breaking apart in your hand. As far as disconnecting these airstones, I always feel there is a 50/50 chance of them breaking on disconnect (completely crumbling into nothing). IMO they lose a star there.

This is where I take another star: I am running a hydroponics deep-water culture which requires a nutrient solution. After running a brand new air stone in a deep-water culture, bubbles will be rich for a few days, and plants will be happy. After two or three weeks, I notice almost no bubbles reaching the surface of the water, and after I inspect the plant's root zone, the airstone is the problem.

You can unclog these airstones effectively by running them overnight in a water/peroxide mixture, or by soaking them in boiling water for 3-4 minutes, but when they have a 50/50 chance of breaking every time you switch them out ... they aren't worth cleaning or replacing.

I took these airstones out of my hydroponics application, and bought a stronger air pump. My plants seem happier with no airstone and more bubbles coming from the actual air pump. Assuming your check-valves are in place, there's nothing to clog. The next time I absolutely need an airstone, I will most likely drill tiny holes in some airline tubing and use a T connector to wrap a circle.

These 1-inch airstones were amazing until they gave me a headache.

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Unlike the other reviewer, my product arrived in great condition and worked completely as expected. I'd order this again. Bubble bubble bubble :)

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I had to change the air tubing. Trying to take of this NEW air stone off, it crushed/crumbles and totally fell apart. I have never had and air stone do that before. Very poor product I would never buy again.

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Filter of excellent quality, providing good bubbles to my aquarium keeping the water well oxygenated, product of warm, Durable air stone diffuses water in every direction Helps release carbon dioxide build-up