Penn Plax 4-Pack Aqua Mist Air Stone Cylinder Aerator for Fish Tank

These things are pretty cheap, so it's not shocking that the first time I tried to pull one out of the tube that it broke/shattered. Ended up cutting the tube and putting in a new one. Work well, but can break apart due to the tubing tightness.

Plenty of bubbles with these. So far they seem to be working out just fine. I liked that they didn't need to be "soaked" in the water for any time before being hooked up. They work right out of the package just fine. Mine give a nice mix of bubbles and seem to aerate the tank just fine.

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I go through air stones for my hermit crab pools a lot. This brand seems to work better and last longer in their pools. They do the job aerating and don't get slimy like the other brands I have tried.

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I use these in a hydroponic set up, a difficult environment for air stones. They work well and last quite a while in small self contained systems.

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