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New and Old bottle stickers
New Gray---- The new gray bottle stickers can be removed without leaving a trace
Blue Sticker----Classic blue bottle stickers have been used for many years!
Both are Clscea bottle stickers!
5.5L Aquarium CO2 Generator Kit
- This product is NOT a complete kit, only the important components of the CO2 system tool are included. Raw materials, diffusers, solenoid valves, etc. need to be purchased separately.
- Tested and passed QC before releasing to the market.
- Be sure to check the dimensions and make sure you have room for it as it is large.
- Condensation can occur on the outside of the cylinder, so best to place the unit on something to catch the water. For example, a rag.
PACKAGE INCLUDED:
- 1 x 5.5l cylinder
- 1 x Dual needle valve regulator
- 1 x Filter
- 1 x 4m CO2 tubing
- 1 x Plastic funnel
- 3 x Suction cups
- 1 x User manual
Ryan Sanford
September 3, 2025
This is a high quality set up that gives you everything you need to pump CO2 into an aquarium. The directions are clear and written in a paper booklet as well as on a sticker on the CO2 tank. They even offer YouTube videos for those who are more visual learners. Hopefully, the company will be around a while because they currently offer a wide array of replacement parts for items that will wear out over time. Great kit.
J. Brown
August 28, 2025
I didn't have high expectations for this item, having come from a paintball CO2 system years ago. This thing is fantastic for the price, although I do wish the diffuser was glass instead of plastic, that's a small nitpick as it works perfectly. Everything else, from the canister, gauge, needle valve and solenoid are high quality, and I expect them to last awhile. I was up and running within 1/2 an hour, from unboxing to finish. Strongly recommend the 1.3l system for a nano tank - mine is a 5 gal and this is perfect for it. This deserves a higher overall rating than it has.
JR
August 26, 2025
The media could not be loaded.
Warrior_joe
August 16, 2025
no issues. Adjusts fine. I would buy it again. Really improved the growth of my plants
Mad Mensch
July 23, 2025
UPDATE: After buying the Clscea co2 system I came across another “mini†system from Chihiros Aqua which looked high quality so out of curiosity I purchased it to compare. After using both systems for a few days my original 5-star review is validated. The Clscea system blew it out of the water. The Clscea regulator is much easier to dial-in and maintain its setting whereas the Chihiros regulator would constantly change and in some cases completely stop the flow of co2. If you want a budget co2 system it doesn’t get better than the Clscea.I’ve been in the nature aquarium hobby for quite some time and have used CO2 systems that cost quadruple this price. I was very hesitant to try a “DIY†CO2 kit since all of my previous systems were pressurized, but that said, I decided to try this out because my nano tank is only 2g and I didn’t want to spend hundreds of dollars on a CO2 system. When I received the kit I was surprised with the quality the canister and most of the components - the biggest downside is the included diffuser which is made of cheap plastic. While the diffuser does work, I would definitely recommend buying a higher quality diffuser and one sized for your tank.Set-up was really easy however I wish Clscea included a scoop for the ingredients instead of simply instructing you to use "grams". I took another reviewers advice and used a 1/4 cup however I don't think that measurement is entirely accurate so I'd recommend using a coffee scale if you have one. Overall everything went smoothly - just remember to install the inner filter first before screwing on the regulator. Now that I've had the system running for a few days I will say I'm incredibly impressed with how easy it was to set-up and the quality of the solenoid and regulator. Because my tank is so small I needed a really precise regulator to get to ~5-6 bubbles per second and I had zero issues achieving that with this kit. I also have the solenoid on a timer and it works perfectly without any change to the regulator setting after turning back on.Overall I highly recommend this kit (so far) as long as the solenoid doesn't require maintenance too often, that's really the only potential downside. Good news is Clscea does sell parts on Amazon in case you need too replace it. But OOTB for the price I definitely recommend giving this a try.
jeffrey E trepanier
July 21, 2025
The product seems great except the instructions kind of suck with details. Little better than getting other generators that you mix up quick and they last for a week. Tulsa highly dangerous due to the low quality parts on here. My alarms in my house started going off for CO2 but it turns out that the nozzle that the bubbler connects to leaks all the time and if you take that off it doesn't seal it it also just sprays CO2 out so the only way to safely control it is to turn it off which completely makes it useless. Sometimes it is too good to be true and I think I might end up returning this because I'm not going to die in my sleep because the company wanted to use low quality products and make a product that leaks CO2 even when the controller is off. Perhaps another vendor will have a better product.
E. Goodson
July 10, 2025
I've had this CO2 reactor for a couple of months now and am very pleased with it. The instructions are clear and most of the components are high quality. I say "most" as the CO2 drop checker wasn't great. But the reactor itself is excellent. I have to add more reactants roughly every 2 weeks as my tank is high light, heavy plant growth. But it takes just a few minutes to clean and refill. I'm glad I went with a solenoid unit as I can keep everything on timers, unlike budget CO2 reactors. The CO2 reactor turns on 1.5 hrs before the lights do so there is already CO2 in the water when the plants are starting to photosynthesize. And then my timers shut the CO2 stream off an hour before the lights do so little of it goes to waste. It's a good system and I'll never go back to not using CO2 for planted tanks.
Mich
June 16, 2025
Ses facile a utiliser et de bonne qualité et moi j’ai mi 100g d’acide citrique et 100g de bicarbonate de soude et 150ml d’eau et sa la monter jusqu’à 21 de pression.
Villeneuve luc
May 4, 2025
Parfait pour l’entretien
Ellas vazquez
April 1, 2025
Llegó en óptimas condiciones y antes de tiempo excelente servicio
aurele
February 1, 2025
Works as expected!
michael
January 11, 2025
J’aurais du l’acheter bien plus tôt, vraiment très économique, et avec une minuterie vous aurez la paix durant des mois.
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