Aquarium Glass CO2 Diffuser Atomizer with U Tube Check Valve Suction Cup Premium Version...

CO2 diffuser arrived on time , undamaged, I immediately rinsed it off and installed. it works WAY better than the air stone I've been using for CO2. I didn't need to heat my CO2 tubing because it was already stretched out adequately but I can tell that if I tried to force it in the diffuser stem ,I might break the stem. 10 out of 10. Would highly recommend.

The media could not be loaded. If you take one of the suction cups and put the part of it in the water it works, and then have the 2nd suction cup on the diffuser part itll stay together

The bubbles come from the seam between the stone and the glass and form large bubbles. I bought 2 and both has the same issue. Its not worth the $10 you save. Just go for a more expensive one.

Does not fit over upper frame

First let me address why I titled this the way I did. I watched the video over and over to understand what I was doing. Was about to order but got the combo with the diffuser. What was different was three things. 1. It didnt come what the baking soda or the citrus. The video implied that it but that's my fault, I should have read closer. Ended up buying it. 2. The test tube didn't come with a lid like it shows all over the listing. 3. The main part with the regular is not anything like the listing. It does have the same features and function but rather it's a big green bar. Once both bottles are connected it's hard to shake bottle B like it says in the instructions. The earned stars is because it works. I set it up in under and hour. Tomorrow I will let it run for it's first 8 hour run. The defuser works well and comes with plenty (for me) tubing to set it up right. I used two 2L bottles ,I was going to use 1L but it hides behind my tank well. I will update this as time moves forward. I'd like to record my thoughts on the first time I need to change the chemicals and maybe how long the first set lasted.