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Availability:
In Stock.
Arrives
Thursday, Mar 5
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Features
- Helpful tool to grow lush and vibrant aquarium plants
- Simple and easy to install
- Suitable for aquariums up to 30 gallons
- Country Of Origin: Taiwan
Description
Since all planted aquariums lack CO2, it is extremely important that they are supplemented with it. In fact, 40 to 50% of a plant’s dry weight is composed of carbon. For optimal condition of aquarium plants, some CO2 supplementation is necessary. The Fluval Pressurized CO2 Kits come complete with all the necessary tools needed to grow lush and vibrant aquarium plants. This disposable cartridge system is ideal for small planted aquariums (up to 115 L/30 US gal). The kit includes : High-Quality Regulator Valve Support Base High-Quality Ceramic CO2 Diffuser which produces the finest of bubbles 2-in-1 Bubble Counter & Check Valve Hose.
Is Discontinued By Manufacturer : No
Product Dimensions : 2.5 x 5.7 x 8.5 inches; 1 Pounds
Item model number : 17554
Date First Available : August 12, 2017
Manufacturer : Rolf C. Hagen (USA) Corp.
Best Sellers Rank: #94,502 in Pet Supplies (See Top 100 in Pet Supplies) #1,433 in Aquarium Filter Accessories
#1,433 in Aquarium Filter Accessories:
Customer Reviews: 3.2 3.2 out of 5 stars (253)
Item Weight: 1 pounds
Manufacturer: Rolf C. Hagen (USA) Corp.
Item model number: 17554
Date First Available: August 12, 2017
Item Package Dimensions L x W x H: 8.43 x 5.71 x 2.8 inches
Item Dimensions LxWxH: 2.5 x 5.7 x 8.5 inches
Item Weight: 16 ounces
Brand Name: Fluval
Target Audience Keyword: fish
Model Name: 17554
Size: 3 Piece Set
Material: Ceramic
Number of Items: 1
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Mar 5
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
The media could not be loaded. I set this up on my new nano tank today and have had no issues so far. No leaks (I immersed each of the connections to check) and I'm getting fine bubbles from the diffuser. I read lots of the reviews here before I even ordered this and found some good tips. There are a lot of negative reviews, but my overall impression is that many people don't take the time to read the instructions and they set up this system before they have a good feel for what they're doing. As suggested by at least one reviewer, I used teflon tape on all the threaded connections, even on the bubble counter, which was probably overkill, but there's no downside. I made sure to install the bubble counter correctly, with the arrows indicating the direction of flow. I soaked the diffuser for a whole day before installation, as some reviewers suggested. I didn't have any trouble adjusting the regulator to get the bubble rate as I wanted it, and it has remained steady all day. The pressure gage is down about 200 psi after about eight hours of use, so I don't know how long the CO2 cartridge will last. We'll see... Lastly, I just wanted to add that this mini-sized kit is just perfect for a nano tank. A big gas bottle would have been in the way and unsightly, not to mention expensive. I also bought the tank on Amazon (Marineland Portrait Glass LED Aquarium Kit, 5 Gallons, Hidden Filtration). I hung the CO2 cartridge on the back and put the diffuser in the sump area, which also houses the pump and the heater (it came with the pump and I added a heater). There's no equipment in the main tank and the only part of the CO2 system visible from the front is the bubble counter on the side. The video shows fine CO2 bubbles being carried from the sump into the tank by the pump. Very aesthetically pleasing setup! Update: After using this system for two weeks, I changed my rating to two stars. The CO2 cartridges are lasting only three days each, which makes this cost-prohibitive to continue using. I’m so disappointed, because I love the overall design and size of this little kit. It fits perfectly and unobtrusively on my 5gal nano tank. Update 2: Before giving up, I took the system apart and added a lot more Teflon tape to all the connections, especially where the tubing connects to the bubble counter. Those connections seemed loose; the plastic nuts don't fit tightly enough to compress the tubing around the connectors, so I suspected I might have leaks there. I wrapped Teflon tape around the threads, connected the tubing, then wrapped more Teflon tape around the ends of the tubing and over the threads again, before screwing the nuts on. I also added more Teflon tape around the threads of the bubble counter itself, and also around the connection between the tubing and the regulator. And I replaced the gasket in the regulator (where the CO2 cartridge attaches). The kit came with two spares, so I figure why not. And of course I wrapped the threads of the CO2 cartridge with Teflon tape, as I had been doing. The result: I think my problems are solved! After three days of running the CO2 system about ten hours/day, one bubble per minute, the CO2 pressure has decreased almost imperceptibly. Yea! So I changed my rating back to 5 stars. As a side note, Fluval should really include a roll of Teflon tape with this kit and mention the importance of using it for leak prevention in the instructions! It might save a lot of frustration and disappointed buyers! Update 3: 9/22/24 – I'm consistently getting two weeks from each CO2 cartridge now, running the system ten hours/day at about one bubble/second. That puts the cost at about $5/week for CO2, which works for me!
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Reviewed in the United States on August 10, 2024 by Nancy K. Farlow Nancy K. Farlow
Straight out of the package leaking from the bubble counter. Not to mention the regulator is crap. It’s either all or nothing, I could not get it set to a certain amount of bubbles per second. The diffuser was also junk and let huge bubbles out rather than diffusing them, and yes I pre soaked the diffuser. Everything in the kit is flimsy and not worth your money. This lasted a whopping 10 minutes on my tanks before throwing back into the box it came out of.
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Reviewed in the United States on November 8, 2023 by Nathan Metayer
For your very basic kit for a small aquarium this is great. It is not a hands off system if you want one of those it will require a much more complex system with a ph controller. This will cost you a lot more then 50.00. Now this does take time every day to get it going and you must be willing to take the time daily. Also if the regulator is broken or leaking you will need to return it. That seems to happen a lot. Also the tubing they provide will break if too much pressure is put thru it. The diffuser provided with the kit is not the best it will take up to 2 days to start giving you small bubbles but give it time. Also it is very very difficult to get it to a bubble every 2 secs if you can get between a bubble every 4 sec and a bubble every 1 sec you are fine. The directions are not the best and they start combining steps together at the end that will cause confusion if this is your 1st co2 set up. So slow down and make sure you have done everything. Over all for the very basic system this is. It deserves 4 stars. If the directions were better and quality control was better and they had a slightly better diffuser they included it would be a 5 star.
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Reviewed in the United States on August 19, 2024 by Michael
The product is pretty good. I modified the plastic holder for the CO2 because it wouldn't go over the side of my rimmed tank. I just used a miter saw to create a wider notch. Tip: at night, detach the hose from the bubble counter to the diffuser so it doesn't fill with water and pop when you turn the CO2 open the next day. I suppose it's a pain to connect and disconnect the hose every day, but this system is cheap enough it who cares? Disconnecting your hose at night will spare you a lot of tubing pops, and I've noticed that's a common complaint. Lastly, DON'T WASTE YPUR TIME on the diffuser. Go buy a better one. The packaging said it may take a few days to create the fine mist bubbles....it never really did. There were soooooome fine mist bubbles after a couple days, but they it'd just go back to be one large bubble when I adjusted the bubble counter, and that is a total waste of CO2. Forget it, don't waste your time with that cheap plastic thing. I am awaiting the delivery of a glass diffuser as we speak.
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Reviewed in the United States on June 24, 2024 by Amazon Customer
A lot of negative reviews for this product, but it works absolutely perfect for me! From what I’ve been seeing and reading, it appears a lot of people buy this as a beginner CO2 kit, which it absolutely is, but have not fully followed the instructions. I followed the instructions to the “T” and also soaked the diffuser in tank water for a few hours before turning the kit on. Works beautifully! Small micro bubbles are diffusing throughout the tank and I am already seeing a positive effect after just a few days with my plants. CO2 is very tricky with a fish tank. Unless it’s done perfectly, I can see why a lot of people would have issues. However, this product is great and a wonderful way to start introducing CO2 tip tank.
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Reviewed in the United States on November 27, 2025 by Nancy S. Lynch Nancy S. Lynch