Aqua Culture Bubble Aquarium Stone, 1ct

I just recently installed one of these bubble stones in my 10 gallon tank using a Whisper pump for 10-30 gallons. At first, only half the stone was blowing weak bubbles. I then took it out and turned the black knob like thing on the end of it (end that doesn't have the air tube). Within an hour or hour and half (like directions say), the whole thing was bubbling. I am very pleased with this product and would recommend it to anyone.

Took a while to get saturated but works great

I would put this in a 20 gallon or more tank. I put this air stone under my gravel (buried it) and no it did not kick up dirt or make debris in the tank. It made a beautiful bubble curtain which my fish like to ride.

All of the holes seem to be working which surprises me for $2.00. The tank came with an air filter but I read the reviews and every one said it was very noisy. I bought a whisper filter with tubing and this bubble stone and I love it! Very quiet and puts out a lot of air. The only thing I don't care for about the air pump is that you have to raise it above your tank which is tricky because it's in my kitchen. I did however, work it out and it works great! I highly recommend this system as it is quiet and gives maximum air flow.

Worked for 2 hours.....than stopped bubbling.