Review on 🌬️ Alegi Air Stone Cylinder Bubbler - 2 Pack for Hydroponic Systems, Aquariums, or Fish Tanks - 5.3 inch by Katie Morgan

I don't know why it's so hard to find pond sized air stones. It seems that manufacturers have switched to plastic "diaphragm" bubblers, but they really don't suit me and therefore don't blow past the length of the diaphragm. These stones work well although the inlet size was small compared to my piping. I made them work by wrapping them with black tape. When I was in the pond, I immediately saw that the bubbles were getting smaller and the fish seemed to like them more. As you may know her idea is to turn the water upside down to oxygenate it and I run my bubblers 23 hours a day.