boxtech Aquarium Air Stone, Fish Tank Bubble Diffuser High Dissolved Oxygen Airstones for Air Pump Accessoriess with 1 Check Valve, 2 Suction Cup for Aquarium Pond Hydroponic

Used in all 4 of my tanks for extra oxygen and my bettas love it! I got an air pump (separately of course as it states) that allows me to change the level of bubbles and what not! 100% worth the money!

Looks super sleek in my tank. Doesn't make much noise and has great airflow!

Works well - using it for CO2. Almost like a secondary bubble counter.

It's an air stone, what else can I say?* It's made of plastic but unfortunately that doesn't mean it's particularly durable. I found eventually the point of contact where the u-shaped part that connects to the body eventually wears out causing the air to bypass the air stone.* Don't know why some people mark this product down for just being an air stone. Uh, that's what the description clearly states...air stone. Generally those air pump and air stone combos are terrible anyway....usually the air stone that comes with those combos is total junk.* Some people seem at a loss on how to clean the air stone. And yes, unless you're running this stone in complete darkness, green spot algae will eventually cover the membrane. Performance isn't impacted too much though. But to clean it, just stick the thing in bleach for 10-15 minutes. It'll get off about 99% of the algae; however the stone may be stained, it'll still behave brand new. Make sure to flush the bleach out by connecting to an air pump over the SINK as there will be bleach that makes its way past the membrane and into the body.* This thing is cheap. To get a more durable glass one that looks like this product (and admittedly looks a lot better cosmetically), you'll have to pony up for the ADA version -- which is around a $150. It'll last a life time though as long as you don't crack the glass.

This little air stone sacred out so quiet! I was like, whoa! I gotta have more of these! It was perfect for the aquariums in the bedrooms. The size is somewhat bulky and takes up more room than I'd like in the tank but it was so quiet! My 1st turn off for ordering more was the price! NOT worth more $5 in my opinion... so I thought I'd wait for a sale. In the meantime this little contraption started to change. As the stone gets acclimated to the water it gets louder and louder. The algae seemed grow faster on that stone than on my others. I've tried cleaning it but that's difficult given the shape of the product and how it's made. I got this product hoping it would be quieter than other stones, as advertised, but that feature only lasted about a month or less. Overall. I'm somewhat disappointed but it still oxygenated the water for me so it's not s complete bust!

I use these in most of my builds not for co2 but oxygen. From nano to 30 gallon and after several orders I keep going back to these diffusers. Some builds are a single diffuser and some may have 4 or 5. Bendable nano -Almost always turns out to be a curtain of big bubbles or is entirely un-uniform in most cases, for me. Used not only for the delivery of fairy bubbles for a much better oxygen uptake but, decoration as well. Giant bubbles just look like a bait shop vat. Not impressive nor effective in actual oxygen delivery overall. I highly recommend these diffusers and have become my go to. I have used several others in comparison that cost more and were far less effective or functional. For the traditional big names out there that do not deliver, even after cleaning their stones to their specs, Overall - can not compete with this companies diffusers. I have been very satisfied and highly recommended this product.

The media could not be loaded. It’s very nice, super easy to set up and powerful. I loooove the aesthetic of it and my fish seem to enjoy the bubbles. It did brown out pretty fast on the top but I think that may just be my tank because it’s been having some algae problems.Beyond that though, it’s a good size, pumps out mega bubbles with a very little pump, is not super noisy and is just a good a great addition to the tank

A lot smaller than I thought it would be also it's very flimsy cheaply made