Rated 3 out of 5 by 4
Rated 1 out of 5 by EndlessDark All three stones defective.
All three of the stones did not work properly. After plugging the first one into my air pump and placing it in the water I noticed that only a few bubbles were coming out of the stone at the very base of it. The inlet in all three stones was faulty so the stones did not function properly.
January 2, 2014
Rated 5 out of 5
by Reefmaster Like Em!
No clogging, long lasting, silent and well made. Micro bubbles are perfect for aerating 5 Gallon Salt Mix bucket. I use a tiny air pump too! Great price for a six pack...
May 7, 2013
Rated 5 out of 5 by tank32x What I expected.
These are what they are. Small airstones that give off a small sized bubble. I got a pack and have been very satisfied.
December 4, 2012
Rated 1 out of 5 by BIGA Terrible
These are terrible stones to buy, I bought a pack and all of them were broken (the air didn't come out of the stone at all, it came out where the stem meets the stone...it was like sticking the hose in the water without the stone). So thinking this was just a fluke, I bought a second set but with the same result! However just to mention Petsmart did take care of everything and let me return the items both times.
October 2, 2010