Via Aqua 24" Flexible Air Stone

It does what it says. The airflow is great. It is flexible. Hard to keep down. Had aquariums for 40 years. Don’t like suction cups. They just don’t last. I’m happy though. Didn’t meet my purpose, but works as said.

The air thing is great. Puts out the bubbles. It is not weighted and does not stay at bottom. I purchased suction things to stick to the back of aquarium. However, my Oscar did not like it there and moved it around and floated back to top. So I had to wrap it around the log. It does push through some bubbles which is why I purchased it, not recommended for stubborn fish like an Oscar though.

Not self-sinking. We've tried just shaping it an letting it fall, but it floats, we've weighted it under a rock, and the fish pulled it out. Now it's just floating around at will. It does put out a lot of bubbles, and my fish love to just sit in one of the bends and let the bubbles go over them. But if you are expecting self-sinking, don't count on it.

Well made, simple and easy to install. There is not much to it. It works perfectly. This picture was taken after several weeks of constant use. It does require a higher capacity air pump to be truly effective.

Works great. It's not quite heavy enough to sink on its own so it needs some help to stay down. That's my only gripe.

It works really well. It can be hidden underneath our gravel and it still works, which is nice. Really low profile with little tank space used. The one downside, is that you have to have the outer jacket lined up just right or it blocks off some of the air. It is a minor complaint though. If this works for a year, I will be pleased, but I am hoping to get more than that out of it!

Freshwater only, don't know why but is unclear in description. You can see it on the package if you look closely (magnify picture with mouse)

Very nice flow of bubbles....