Aquario Neo CO2 Aquarium Diffuser - CO2 Diffuser Aquarium Kit, CO2 Diffuser for Aquarium Plants, CO2 System for Aquarium - Normal Original Diffuser, Large

Looks small at first but don't let that scare you. Once you finish installing you'll be amazed at how efficient this thing work. It's perfect for me outta the box. I have not seen a single large bubble so far. Just fine micro bubble. If you want finer bubbles it's recommended to soak in bleach and follow what it tells you. Works hard for a tiny diffuser and this is their large one. Connecting the CO2 tubing to the diffuser is easy and don't over force it because it can only go in about 1/4" and that is pretty tight already. Highly recommended on 75g +/-

Fantastic diffuser. The bubbles are very fine and flow out very evenly. It also starts to bubble relatively quickly after the C02 is turned on and does not need a lot of 'built-up' pressure to start working. I've tried it a 1 bubble every 2 seconds to 2 per second, and it worked great in those ranges (I didn't try more or less but have no reason to believe it wouldn't work equally as well. It's a bit more expensive than the traditional glass diffusers with the embedded white disc but it also works much, much better. I like it enough that I'm going to try their similarly designed air stone.

Like with any product, there are always some that are defective and reviews are almost always written by people that get one of those. In my case, mine was good and has been for the past 3 months approximately. Bubbles are really tiny. Still, this is not the most effective way to inject CO2, but for my setup, it’s OK. Product is authentic, comes in original packaging.

The large diffuser works great and produces very fine bubbles. I was previously bubbling it into the tank. Adding the diffuser made a huge difference for our tank's PH. Using our automated control system the PH (as can be seen in the attached graph) is now very, very tightly controlled. I strongly recommend this product. Only negative is under normal use it kept getting clogged.

I’ve had no problems with this diffuser, provides lots of tiny bubbles across the face. I’m running it at 35-40 psi of an fzone dual stage regulator attached to a 5lb bottle. I found that any less pressure than that was simply not enough to get the tiny bubbles flowing - it ‘seemed’ blocked but it really wasn’t, it just needed the pressure. Update a month later - still blowing tiny bubbles like a champ, and happily dosing a 55gal tank. Still running it at 35 PSI and no blockages or issues. More than happy with this unit

2 out of the 3 I purchased just didn't work at all. Do not waste your money!

I tried 4 other diffusers. 2 glass and 2 stainless steel. All had decent reviews. Perhaps because I am using 2 different DIY systems, there just isn't enough pressure to run the others, but it's not pressure that has been the problem. It's bubble size. This is diffuser #5 and the best so far. This diffuser produces the finest bubble stream I have seen. Smaller bubbles means less CO2 needed and the CO2 charge will last longer. Immediately almost halved my BPS. Bubble size remains constant over the entire exposed surface.

Truly beautiful diffusers. I have three of them now. One large and two smalls. The small ones are SMALL. Like probably for no more than a 10-16 gallon tank (what I’m using them in). But they are manufactured so well. Beautiful ceramic and sturdy plexiglass. The suction cups are also wonderful!

Very nice diffuser, really fine mist and my plants are growing crazy. Easy to setup and does not accumulate algae easily.

Works well in creating really tiny bubbles, even at 2 bubbles per second.

Micro bubble creation machine. This is the best diffuser I ever had. Plants are responding so well now and their growth is phenomenal. Recommended to all aquascape enthusiasts out their. The way it creates the micro bubbles is so mesmerizing to watch 😍

Just loved it price a bit higer in amazon compared to offline stores but the difuser is 10/10