AQUANEAT 3inch Aquarium Air Stone 8 pcs, Fish Tank Bubbler Disc Oxygen Diffuser,Air Stones for Aquariums,Hydroponics,Ponds and Air Pump

I've purchased 40 of these so far. They work well for hydro. They're heavy and sink well, bubbles work (obviously), connectors are good for the 1/4" black silicone hose. No problems with any, no issues at all. Fast shipping, even during pandemic. Will be buying more, for sure.

I bought these for my hydroponic tubs and it's the perfect small air diffuser for my net pots. I totally recommend this 1/4 inch black tubing with hydrofarm active aqua air pump with 4 outlets. I also bought the MIXC 1/4 inch black distribution tubing and it works really really well. This with the master blend has been the key to my success for my little hydroponic garden.

Your browser does not support HTML5 video.  These do not have suction, they are hard rough air stones. Not sure what sheerness is either. I have included a small video of airships in action. I am happy with then

Bubblers are great except for the three leaking all of the air pressure at the airline connection on the bubblers.

Half of the pack only bubbles from near the fitting and not the whole stone. The ones that work have good action.

These are a great size to run in a 12 hole hydroponic system using a tote that holds 16gal of nutrient solution. I plan to experiment with other air stones, and I do plan to buy more of these.

The air stones work really good. One of them quite working after a couple days but thankfully we took advice and bought more then needed, just in case that was to happen.

Quick shipped and adequate for hydroponic system