Large Round Disc Air Stone/Diffuser for Oxygenation in Fresh/Saltwater Tanks, Ponds, Hydroponic, Aquaponics, and as a Decorative Airstone for Aquariums (4.25 inch)

Update I now have a 100 gallon and a better pump and this works great (second photo bubbles on the right)! You need a strong pump to get the job done right.I was a little disappointed as the photo make it looks like it produces a lot more bubbles (as did some of the other reviews), but it does get the job done. I have a 10 gallon tank and ordered the 4.25 inch bubbler. I do have rocks over it so my bubbles are a bit bigger than the tiny ones (which is part of why it doesn't seem to produce as many) but even before I added the rocks it didn't produce as many bubbles as depicted/hoped for (yes, I did follow directions and soak first). All in all, it works and the fish enjoy swimming through the bubbles so I consider it worth the purchase.

I've had the stone for about one week now, and what I can say is that it's well made. It is very solid and seems to be assembled well. The included suction cups do their job and hold it in place really well.The only downside I see so far, is that there aren't bubble coming from the whole stone, but rather around it's edge. This still makes for more than enough bubble, I even used the valve on my air pump to turn it down a bit.I would highly recommend this stone for anyone looking to get more air in their tank and have a nice dense stream of bubbles to add to the aesthetic of the aquarium.

The media could not be loaded. I think it does a great job. Blends in well with rocks. The only problem I had was attaching the bubbler to air hose. I had to widen air hose to get it fit.

Our fish are obsessed with the micro bubbles and keep playing in the stream. Will definitely purchase more!

I was so excited to get this bubbler just to be disappointed. It bubbles very nicely, but only on the edge of one side of it, as you can see in the pictures I submitted. It would have been awesome if it actually bubbled on the entire stone as advertised.

I purchased this item in hopes of keeping my vertical fish tank cleaner. Product came as advertised and began bubbling action immediately. Very easy to install. Adds nice accent to my fish tank along with moving the water around to keep it aerated. Very pleased with my purchase. Quality and price are perfect for what it does.

This was an ok airstone but unfortunately, like many airstones out there, it doesn't diffuse the air throughout the entire surface of the stone. So while you do get a good amount of bubbles, it's kind of frustrating to see how much blank space is left on the stone.

I needed the large size for my fish pond. This hot weather was sucking the oxygen out of the water. I lost 5 good sized gold fish. It works great. I will also use it in the winter to help keep a whole in the ice and oxygen in the water. It’s just what I needed and at a great price, too