Review on 🐠 Efficiently Oxygenate Aquariums and Hydroponic Systems with PONDFORSE Air Pump: Adjustable Flow Control, 475GPH Power, 20W 30L/min by Norma Hoffman

I use this in my pond - originally I had the spout a meter lower and kept the fish airy and agitated. The amount of air it releases is pretty amazing considering the size. I have it on an 8" long and 1.25" wide high volume air rod and I'll probably have to split it into two rods. stones. Air volume and noise level 5 stars. But - it sways like jelly on a trampoline and tends to wander. I finally got the hang of it. It rests on four soft rubber feet that look more like vibration-isolating microphone jacks. In my opinion too flexible. The air outlet is directed upwards and above the pump. If you deliver air to the top, then everything is fine. However, since you are pumping air, it is inconvenient to work with. 3 stars for the corner of the air intake.