Does it's job well. Also needed suction clips to hold tubing that we also picked up. Tank locks great.

I bought it today and I followed it's instructions. After an hour or so, I turned it on and it's bubbling beautifully! My Black Moor is enjoying the bubbles and swimming through or hitch a ride up to surface. 😂 Yes, I bought Black Moor from this store since December 8th. Black Moor is enjoying his Christmas gift as well as I arranged its tank with harvested natural seashells and lava rocks that are natural habitat. Thank you, Petco!

Excellent Air Stone. Placed a round rock on the middle of it to hold it down.

Well it works.. kinda. It works as an air stone does but the ring formation doesnt work at all, i have a plenty strong air pump for my 40 gallon tank and air bubbles were only coming out of the first half. Ended up tucking it under a rock so a normal air stone would have done the same

At first even with soaking as instructed, only 1/2 was bubbling but after a little bit it was cranking out bubbles all the way around! Super happy with my purchase!

Fine and inexpensive substrate. Follow the directions and rinse the substrate to remove powder and prevent cloudiness.

One of my fish loves this thing...he is all .. MY BUBBLES!

I bought this, soaked it and added it to my tank. Bubbles only came from right where it was connected. I even turned up my air pump (which is overly strong for the size tank I have). The bubbles were also very large. I prefer smaller bubbles.