Co2 Drop Checker, Quickest Most Accurate Easiest to Use Glass Co2 Drop Checker for Planted Aquarium Fish Tank (CO2 Checker)

Works exactly as described and an excellent price! Very even distribution of super fine bubbles which is exactly what you need. These type of diffusers only work with a pressurized cylinder of CO2, they need a low quantity of high pressure gas to operate correctly.

Very pleased with this little thing. It’s cute, and does the work. I soaked mine for 48 hours - and got it going from the first spin. I’ve read many comments here (even with positive reviews and ratings) - but totally misleading. Yes, it will ONLY work with pressurized CO2 tank and appropriate regulator valve. But working pressure is NOT 30-40-60 psi. Whoever wrote this - probably has no idea what he/she is talking about (unless it was a bad joke). 60 psi pressure would blow your tubing on every connection - not to mention a tender glass fixture which this diffuser is. I’ve got mine set up at 10 psi for ~2-2.5 bubbles per second (for my 55 gal heavily planted tank). Might increase it to 4 bubbles eventually - but since this diffuser produces perfectly fine bubbles (slightly larger than champagne) - CO2 dissolves in water much better than it did for me with previous diffuser (6 bubbles). Quantity of your bubbles will depend on resistance of ceramic disk of your diffuser (plus any in-line check valves etc). So don’t play (or risk) with pressure - count the bubbles on your bubble counter! And watch your in-tank CO2 checker. One note on pressure though - after you soak your diffuser and prime it initially - you’ll get bubbles out of only 2-3 spots on your disk. That’s when you want to carefully increase the pressure to about 20 psi - and then lower back it immediately. This “jump” will open up the pores and you’ll see bubbles coming out from many other areas of the disk on your diffuser. Good luck!

I had hopes since there were many good reviews. However, it didn’t work at all. I tried a few suggestions and tips on here as well as online but it never worked at all. The pressure needed was way too high for a diy or a co2 tank. The hoses kept popping off and I lost a lot of co2 from my tank. Not worth it, you’re better off purchasing a slightly more expensive one but will actually work.

I bought this for my first ever co2 system, and unfortunately it is too large for my 10 gallon to be efficient enough. Very little bubbles come out unless I have my system release more than 1 bubble per second which is not worth it in my case. It’s aesthetically pleasing but a pain to set up, it does not stick straight out, the suction cups cause it to lay flat against the glass at an angle which is annoying. The glass is very high quality and seems sturdy, I’m clumsy and I have not broken it yet!

Easy to install, read and maintain.

I will start the review by saying this product did work at dispersing co2 throughout the tank. My main gripe with it is that the bubbles it outputs, while tiny, arent the super tiny ones you get from other ceramic co2 defusers. I had to set my bubbles per second to about 10 to start noticing changes on my co2 drop checker. This is fine because it was working. Recently I splurged and bought a $24 ceramic defuser and it is capable of getting changes in my drop checker on 1 bubble per second because the bubbles it defuses are super tiny and don't go straight to the surface. It is also noticeably higher quality and smaller. So, this burned through co2 10x faster than the one 2.5x more expensive. In my opinion its worth it to splurge and get a nicer one. But I guess it just depends on if you’d rather eat the upfront cost or pay more down the road. I don’t regret buying this though. It was an affordable one to initially get my co2 setup going.

I have a planted 20 gal. tank w/nano fish, shrimp, and snails, and I'm doing homemade CO2 for it. This little diffuser is perfect! I attached it to the hose and it started sending out a stream of bubbles within an hour. I have a lot of plants, and they look great. Love it!

Works with my pressurized CO² generator & diffuser. I prefer this type with the barbs, as it's less likely pressure build up, when clearing water from the tubing, blows the line off. Plus the stainless looks really cool with my black tubing. Gonna get more for my air bubbler too, because the line sometimes tend to disconnect there. It probably happens more often with timer setups. When the CO² and air pump are off water backs up to the check valve. When they're turned back on it initially takes more pressure to clear the lines of water than it would if they were constantly running. I try to put the check valve close to the water level so there's less water to clear out when the pump & gas are turned on. Just something to keep in mind if you have or are considering alternating your CO² & air pump with a timer or even manually.

I have tried different diffusers all produced big bubbles and thus lots of wastage. This product is great that even with low CO2 pressure of DIY setups it gives very fine bubbles which diffues easily.

Doesn't work no matter how much pressure I add, such a wast of money and time

Not working . Don't buy this product.

Was not able to release bubbles through the diffuser. Considerable pressure was build up each time I tried which in the end instead led to leakage from connecting point from the tube and the diffuser. Replaced with a different diffuser and had no issues. This one goes in the bin..

Best in quality