FZONE Desktop Aquarium CO2 System,45g CO2 Cartridge,5/8" & 3/8" Compatible

If you've been on the fence about trying CO2 in your aquarium, this is a cheap and easy way to get started. Setup was quick and it started working right away. It comes with everything you need: the CO2 system itself, tubing, solenoid, and diffuser. It's also visually appealing, made of aluminum rather than cheap plastic. I'm running it on an 8 gallon fish bowl and the difference has been noticeable, plants are putting out thick, healthy growth. For such a small footprint, it packs a lot of value. Give it a try!

I really love how compact this FZONE CO2 unit is. It fits perfectly next to my 10 gallon aquarium on my desk without taking up much space at all. It is very easy to use and a lot more economical than other systems I looked at. I added the solenoid to mine so it turns on and off automatically, which makes the whole thing super convenient. If you have a smaller planted tank and want something that works great and looks clean, this is a solid choice.

WOW! This is a great little setup. I had a larger F-Zone reactor kit and this works just as good as the big guys. THe value for the money is amazing as you can get new cartridges for cheap. No noise to speak of, I added it to an inline diffuser and it's crushing it! after jus about a week my tank has perked up immensely, beautiful greens and looks like more root growth and spreading. Well made, super durable and seems to be super well made. If you want an easy solution for CO2 I would go with this all day long!

This is my second time ordering one. The first time when i received it, it was leaking the co2, so i reached out to the seller and they sent me a replacement. It worked great and still does, so i decided to finally get another one, which leaks again :( . I guess it’s a hit or miss.

Good entry to CO2. Easyish install (basically just use the 1 gasket that's already preinstalled for the 45g canisters, I was initially confused but read someone else's review that was also struggling with what I was and that helped) Clean design and pretty solid feel. Currently running 2 since May so I've had them for some time, 1 in a 10 gal and the other in a 5 gal. I have both paired with TwinStar diffusers, check valves, and the fzone solenoids. Now it would be 5 stars if: Instructions were clearer as I mentioned above, it is confusing with the gaskets and whatever else they give you. Sometimes the canisters last a month, sometimes it's a couple days. It does leak sometimes. It either doesn't consistently puncture the canisters the same every time or there's something in the design, not sure. Yes I've double checked tightness of canisters, hose connections, and my check valves. The canisters are priced pretty well and ships next day so it's a double-edged sword, lasts a while and you don't have to pay much for co2 or it leaks and you gotta buy more sooner. Now I do have two so I think they're worth it, you just gotta be aware of your co2 levels and maybe have a few canisters on standby.

Really easy to use and works well.

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!

Great simple little CO2 system, I use it for a nano-cube in my living room where I don't want to run a full, heavy CO2 setup and it worked great. The 45g cartridge provided only lasted about 1 month at roughly 1bps but for a good looking compact setup I can't fault it too much.

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 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.

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

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.