hygger Air Stones for Aquariums, Transparent Acrylic Fish Tank Bubbler Kit with Air Tube, Ultra Silent Bubble Stone Super-High Dissolved Oxygen Diffuser for Aquarium Fish Tank and Hydroponic

Love this good quality

Bubbles are big not small as advertised

Very good quality, fishs loved

This bubbler has two features which set it apart: it’s acrylic, so it should last much longer than air stones (and is more attractive, IMHO), and it’s designed to create smaller bubbles. Smaller bubbles means more surface area which allows more oxygen to dissolve into the water. Hygger claims the use of EVA material to create bubbles is more corrosion-resistant than the material used by competitors, and that it will never clog. When I first connected to the bubbler to my air pump, the bubbles were plentiful, but no smaller in size than my other air stone. Then I saw in the manual that the bubbler requires an air pump of at least 2 watts to produce small bubbles, and my pump is 3 watts, but has two outflows. I connected the bubble to another 3 watt bubbler and indeed the bubbles were smaller. I then spoke to Hygger support who told me to use the pliers to tighten the cover on the disk to generate smaller bubbles (I had hand-tightened it). After that, small bubbles were produced using both pumps. The set includes a 1.77-inch (45mm) air bubbler, a 2-meter air tube (4mm diameter), a suction cup, a check valve, and stainless steel pliers (to adjust the size of the bubbles, and to remove the top of the bubbler to clean it, if necessary). I recommend this air bubbler.

ABSOLUTELY LOVE THIS AIRSTONE...HOOK UP TO DECENT PUMP AND IT MAKES A SERIOUS AMOUNT OF OXYGEN FLOWING BUBBLES MOVING WATER AND LOOKS GREAT!

Starts up very quickly with no fuss, stays settled where I put. Bubble curtain nice and full looks really nice. There is no noise from the air stone. Think it will wear well as I have a smaller one at the other end of tank and it has been running well now for several years just take it out occasionally for a quick clean. Would recommend as easy installation and fuss free and quiet running.

I originally bought the larger 3.1 " and it worked very well so I have over a period of time ended up buying four of the 2.3" size. I have been using them in a hydroponic set up to increase O2 level, and over a period of time the nutrients fall out of solution and plug up an air stone. These seem to be much easier for me to clean and return to service. I did not think I was really getting the stone clean on other products I have used. These are made of some type of plastic, they come a part, and appear to completely clean when I am done cleaning them. It took me a little bit of time to learn how much to tighten them when I put them back together, but you can adjust the size of air bubbles to some extent depending on how tightly you assemble them. They have a material between layers of plastic that cause the bubbles, and they seem to be holding up after repeated cleanings, but time will tell. I am not sure if you can purchase replacement parts or if I break one I just have to get a complete new air stone, but so far the are holding up very well.