

🌿 Elevate your nano aquarium with precision CO2 power!
The HAGEN FL MINI PRESSURIZED 20G CO2 KIT is a compact, easy-to-use CO2 system tailored for planted aquariums up to 15 gallons. Featuring a 20-gram cylinder capable of delivering 55 refills and a precision regulator valve, it ensures consistent CO2 output for healthy plant growth. This affordable kit is perfect for beginners and nano tank enthusiasts seeking reliable, efficient CO2 supplementation.

| ASIN | B0049RL3H4 |
| ASIN | B0049RL3H4 |
| Allergen Information | Nut Free |
| Best Sellers Rank | #122,517 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,103 in Aquarium Water Treatments |
| Brand Name | Fluval |
| Customer Reviews | 3.9 3.9 out of 5 stars (829) |
| Date First Available | August 18, 2004 |
| Global Trade Identification Number | 00015561175401 |
| Included Components | HAGEN FL MINI PRESSURIZED 20G CO2 KIT |
| Is Discontinued By Manufacturer | No |
| Item Form | Gas Cylinder |
| Item Type Name | HAGEN FL MINI PRESSURIZED 20G CO2 KIT |
| Item Weight | 11.52 ounces |
| Item model number | A7540 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Product Dimensions | 2.7 x 5.4 x 8.1 inches; 11.52 ounces |
| Target Species | Fish |
| UPC | 015561175401 |
| Unit Count | 1 Count |
| Warranty Description | Manufacturer Warranty |
H**T
The instructions could be better, but a great starter/nano co2 kit!
I bought this as an introduction to co2 tanks after doing a ton of research on more expensive options. Here's what I've noticed: - Like other reviewers have stated, a check valve is a nice thing to add into this kit, just in case. I had no issues with water backing up but I can see how it would easily happen! - Also like other reviewers have stated, definitely tip the diffuser on its side when you're putting it into the tank for the first time, so all of the air comes out easily - Make sure the regulator valve is tight on the co2 cartridge. I struggled when I was trying to fill up the reservoir tanks for the first time because the regulator hadn't actually pierced the co2 cartridge yet, even though I thought I had tightened it pretty well. - It's pretty easy to open the valve way too far, which isn't a huge deal but you'll get a ton of glugging/big bubbles in your reservoirs as the water goes out/co2 goes which will disturb your substrate or fish. When the instructions say "fill both tanks with co2" you can tell this by how little water is left at the bottom of each little tank. I found it hard to know what to expect with this step so hopefully that helps anyone else feeling the same :) - Definitely do not pay for Fluvals 20g replacement cartridges. Get a multi pack of brewers cartridges. 16 and 20g cartridges typically have the same size of threading and i found 16g to be way easier to find cheaply and in bulk, and they fit in the little holder just fine! Other than the quality issues others have mentioned (I had no issues like that) I think this is a great, affordable little setup for a small tank!
L**7
Good Value for Nano tank setups, Do yourself a huge favor and purchase a check valve!
The kit is very good, especially if your getting into learning how to properly administer co2 to your aquarium. The kit is needing a check-valve to be included with it. I read my instructions & set up my system on my aquarium, the next day when I added some co2 into the aquarium it shot out a high-pressured burst of co2, I thought that was strange, & then I noticed water droplets in the tube about 3 inches from the co2 valve. (I don't think the water traveled all the way to the metal parts, because of where the water droplets were showing inside the tubing ) This really stressed me out, because this can ruin the unit if water gets to the metal valve for the co2 release. I rushed to my local pet store and grabbed a airline check valve; which I found out the next day was defective (glad I noticed the water went right through-it, yet, to my relief, it still didn't make it to the co2 unit ), so I returned that defective one - and then went to another pet store (to purchase a completely different brand) and this time the one I purchased works well-It stops the water at it. I have the mini co2 canister setup 2 inches above the water line but the water still travels up the line. I read my instructions, yet I didn't notice anywhere in the instructions a recommendation for the product user to purchase a check valve. I was going to give the product 4 stars - because if I had not owned fish tanks previously I would not have known that a check valve is critical for any tubing going into an aquarium to prevent back syphoning, otherwise other than that, its a 5star item for the price and what you get with the kit in my opinion. (I think the kit, either needs to say in the instructions that the user should purchase a check valve, or that should be included in the kit) Also If the manufacturer ever read this by chance, I would recommend that a slight modification to the design of the chambers would be helpful. The kit includes two chambers that came linked together, or use single. I am only using one, and It would make a better product if the chambers separately had two vertically placed suction cups on each (instead of one) for better stability in the water( because I am using just one); It would affix better to the glass and if one did not like the look of that ~ I noticed the suction cups can be easily removed or reattached anyways for user preference. Thank you I am very happy with my first go at a co2 aquarium setup! Very fun product, and a simple set-up!
S**O
good value
I bought this CO2 setup for my 5 gallon fluval spec v tank. Overall this setup is a good value. I didn't care much for the stock diffuser though, for a smaller tank it's way way too big. At the same time it wasnt raising the CO2 in my tank to the levels I wanted for my plants. So I upgraded with a fluval ceramic diffuser and fluval bubble counter and a check valve. So it's similar to the fluval 88g setup but less expensive overall. I like this setup a little bit more than the larger fluval setup for the simple fact that refill co2 cartridges are very inexpensive on amazon. Instead of using the fluval brand replacement co2 cartridges you can use basic 16g threaded CO2 cartridges that are barely more than $1 each shipped. At about 1 bubble per second, 1 cartridge of CO2 has been lasting me about 1-2 weeks with me running the CO2 for about 2-3 hours a day while I have my tank lights on. I feel this setup is great for someone like myself who's newer to having a planted tank. I think once I get more into it like most... I'll want to move to something with a bigger tank with a regulator that has an electronic solenoid. But for the time being this is really working well on my smaller tank and allowed me to experimenter with a CO2 system for a lesser price than going all out right away on a bigger system. Overall I'm giving this a 4/5 star because the stock diffuser is really lack luster in my opinion which is why I upgraded. At the same time this setup should come with a check valve and it doesn't. Daily water backs it's way up the hose to the regulator. With out a check valve it could cause a disastrous siphon and drain the tank and kill your fish + ruin w/e the water gets on. A check valve is so inexpensive I'm astounded that this kit didn't come with one. So to anyone buying I would suggest buying a package of check valves on amazon and adding one as an upgrade. I'm also dinging it by one star because the valve on the regulator for the CO2 I think could be a little nicer. You really have to really crank it down hard to get the system to shut off fully. End result is once you turn it off you've cranked it down so hard that when you turn it back on you have to exert so much force that you don't always succeed in turning it on slowly. So sometimes when you go to turn it back on you end up with a large pressure spike. I've had the pressure spike blow the hose off the diffuser before because it released too much pressure at once. So the valve control on the regulator is anything but "precise". But keeping it in perspective... this is a cheap kit. And it does work, and it does work well. So overall I would recommend this product to others like myself who are starting out, or who just have a smaller planted tank who don't want a larger paintball tank setup.
C**E
A la premierebbe utilisation impossible de refermer la vanne sans un jeux de clefs. Les bouteilles se vident en deux temps trois mouvements!!! Heureusement pas trop onéreux. Mais mieux vaut garder sons argent.....
A**R
working awesome plants r growing so fast I just love this CO2
A**B
Ich hatte schon ein anderes Gerät einer anderen Firma und war für meine 10-20 l-Becken damit sehr zufrieden. Für ein 10 l-Becken reicht eine Blase pro Minute... im großen Becken habe ich natürlich etwas Professionelles mit Nachtabschaltung. Jedoch halte ich nichts von diesem Vorratsbehälter, ich habe also eine sog. Paffrathschale - nach demselben Prinzip - angeschlossen, die kann man sich leicht selber bauen, Anleitungen gibt es reichlich im Internet. Eine kleine Plastikdose aus der Apotheke, ein Plastik-Rücklaufventil, bisschen rechnen können und etwas Silikon. Gerne Email für konkretere Links. Die Kartuschen mit 16g bekommt man im Netz/hier bei Amazon unter 1 EUR/Stck. Der Vorratsbehälter hat jedoch den Vorteil, dass, wenn er tagsüber leer wird, nachts kein CO2 einspeist... Mit dieser Methode lässt sich das Produkt gut einstellen und ich bin sehr zufrieden. Außerdem sieht es stylish aus und kann es durchaus mit dem ähnlichen Dennerle-Produkt aufnehmen. (Das viel mehr kostet, die Kartuschen mit 80g sind unmöglich teuer, usw.) Für ein kleines Becken und für die, die die Bio-Methode scheuen: Absolut empfehlenswert! Werde gleich ein zweites bestellen - für ein Mini-Becken mit Mini-Seerose.
M**E
If used with the supplied diffuser it works really well, it is not designed to be used with a small bubble diffuser as it is difficult to control the output but it's around £20 so cannot expect this. The diffuser is quite large but mine is in 35ltr tank behind plants and I only fill once a day, my co2 levels are at optimum level and anubias are growing really well.Overall great for a small tank, if you want a bubble diffuser or have a larger tank I would go for the Fluval 88g.
S**.
The fluval mini co2 set works very well! I received it well before the expected date. Some people don't like the large diffuser that comes with it, but I don't mind it as i can partially hide it behind my plants. Seems to be working as expected. The only thing about this unit is that the Co2 cartridges can be costly in the long run but I don't plan on running it all the time. FYI it says it clips onto the side of your tank, I have a 20G tank and the clip for the co2 cartridge is for a small thin rimmed/rimless tank. other wise I hang it with a suction cup on the outside and it's perfectly fine. I would seriously recommend this for anyone with a 20G or smaller tank.