FZONE Desktop Aquarium CO2 System, CO2 Regulator with 45g Disposable CO2 Cartridge, Compatible with 5/8" and 3/8" Threaded Interfaces, Perfect for Nano Aquariums

I bought this specifically to grow carpeting plants in nano tanks. I am currently using it in a 2.5 gallon Iwagumi style aquarium. What I like most about this is the ability to slow down the release of co2 so that you can use it on the smallest tanks. I can easily slow down to 1 bubble every 10 seconds for my 0.9 gallon super nano tank. Because it’s so small it is very convenient to use and move around. The CO2 cartridges from FZONE are large and affordable. If you want to use smaller cartridges the adapter is included. I would highly recommend this for nano tanks up to 10 gallons. I also like how easy it was to set up and how sleek and cool looking it is. This small device gives you the ability to grow every plant faster and allows for a better selection of plants that you can use. I made a unboxing and set up video (my first one ever) hopefully it helps someone or gives you a better look at how it looks and works.

I just set up this awesome little CO2 system for my 23G community tank. I wanted something small and easy (being a beginner with high-tech) just to give it a try and this system didn’t disappoint. The price was right and the setup was super easy. It comes with a bubble counter but I wanted a solenoid to turn it off at night. So I got this additionally. I also got the CO2 diffuser.So far so good. It looks very sturdy for its size. All quality metal no plastic. And it is so small I could easily put it in my bookshelf. See the postcard next to it in one of my photos.I already got another one for my other tank!

I bought this to get my tank set up and also use the solenoid. This is a very simple way to keep the CO2 regulated and much less hassle than the DIY kit I was using. When I got the replacement cartridges I had an issue with the seal not being punctured properly and I was losing a bunch of gas. I contacted support for help with that issue because the initial gasket was getting loose. I was guided through the process to use a replacement seal and a better way to secure the cartridge when they need to be changed. Once doing it the recommended way, very minimal gas leaks out after the initial puncture, the pressure is correct and the cartridge fits as it should. Zones support team replied in a timely manner with an efficient solution!

This CO2 system is perfect for my 11 gallon tank! I set it up along with their solenoid valve! It’s easy to set up and a good value! My plants are happy!

Design is amazing, it's small, compact and fits neatly on the counter. I have a 14g tank, so I don't need a big setup, was hoping this would be quick, easy and discreet.Problem, it leaked straight out of the box. I screwed in the CO2 canister (with the valve shut) and about 5 secs later it immediately dumped the entire canister out while simultaneously freezing.Also the directions are terrible, unless you understand pictures that extremely vague. I had watched a video ahead of time so it made sense.Will see if the replacement is any better

I picked this up for the 6gal desk tank my gf keeps at work to see if we could juice up her plants a bit and it’s worked wonders! It’s easy to manage since she just runs it while she is on the clock. Still on the first cylinder, so I’m not too sure on the run time, but I’ve found replacement cylinders for very cheap. I highly recommend for anyone that has a mini desktop tank

Easy-ish set up. I forgot the gasket and lost a whole cartridge. Anyway, using in a 9.5 gal lyphard. No leaks. Decent stream at about 2 bubbles per sec. Minus 1 star for the canister not closing tightly. I’ll likely reach out to Fzone about that.

This is my 2nd tank in a row that has leaked all of its contents as soon as I installed it. These pictures were taken 30 seconds after installing the new tank.

This actually works perfect perfectly. So much better than the fluval I bought. Do not think twice about ordering this item if you want a simple CO2 bubbler for a small planter tank.

Works well for nano tanks. Very simple to setup and also easy to replace CO2 cartridge. Life of the CO2 is roughly 1 month. Overall a good product and an excellent way for beginners to get into CO2.

This system is perfect for nano tanks.Extremely well made and packaged well.Instructions a bit lacking but customer service is exceptional.Much easier to watch the instruction videos on FZone website. Already ordered the diffuser and solenoid.

Product works great, cylinder wouldnt connect properly but FZONE customer support helped me outIf the cylinder doesnt work for you Fluval cylinders work just fine!