G200 Aquarium DIY CO2 Generator System Kit

Work good and easy to setup, nice design

So this device works as planned and all the valves and connections are worth the cost. With that being said they say to use 1 bottle of an acidic mixture and 1 bottle of a base. The acid drips into the base causing co2 to be released. The problem, even with the needle valve turned way down it still goes through a bottle of acid daily. A bag of citric acid will make 2 bottles and is $15, you do the math. Tried cheaper alternatives for acid like just using vinager and the reaction wasn't enough to build pressure and didn't last long at all.As an alternative if you ferment some sugar water with yeast in bottle 1, allow it to bubble into water in bottle 2 (1 way air valve) and it builds around the same pressure and will last for weeks on pennies worth of materials. As the yeast eats the sugars turning them to alcohol, the byproduct is co2. I like to let the alcohol then sit out and sour to vinager and use it for cleaning, no waste.

This is a really solid set of hardware for a 2 liter co2 setup, this is meant for a baking soda and citric acid. You can make some tweaks and make it work for yeast as well. The gauges and needle valve are pretty cheap but they work.

The two-bottle CO2 reactors suck. They're prone to clogging the line with baking soda, the valves are of poor quality and hard to modulate just right, and always seem to release CO2 in massive surges no matter how I adjust the primary and needle valve; I've tried the ball valve wide open and the needle valve to regulate by itself, I've tried just cracking the ball valve to assist the needle valve with regulation, trying to target 4-8 bubbles per second for my 4x3x6 grow tent (my setup is bottle output -> solenoid -> ball valve -> needle valve -> hose to tent -> bubble meter -> diffuser in jar of water), and it is very inconsistent. I've tried purging all the lines with air, added a solenoid valve to run off a timer in tandem with my grow lights, so the valves can be set in place essentially calibrating the system so when I refill I don't touch the valves at all... all to no avail - sometimes the acid is consumed in a day or less, and sometimes it will last a week or more. The system just plain sucks - and yes, I've verified there are no gas leaks. The valves in this kit are just a really poor choice for this application. Great concept, but really lousy implementation.I'm taking this system and tossing it in favor of a stainless steel bottle reactor that uses a single bottle with a proper pressure regulator and high-quality needle valve. I suppose the best I can say about this is that this review can save you wasting money on an unreliable solution. :D

First let me address why I titled this the way I did.I watched the video over and over to understand what I was doing. Was about to order but got the combo with the diffuser. What was different was three things.1. It didnt come what the baking soda or the citrus. The video implied that it but that's my fault, I should have read closer. Ended up buying it.2. The test tube didn't come with a lid like it shows all over the listing.3. The main part with the regular is not anything like the listing. It does have the same features and function but rather it's a big green bar. Once both bottles are connected it's hard to shake bottle B like it says in the instructions.The earned stars is because it works. I set it up in under and hour. Tomorrow I will let it run for it's first 8 hour run. The defuser works well and comes with plenty (for me) tubing to set it up right. I used two 2L bottles ,I was going to use 1L but it hides behind my tank well.I will update this as time moves forward. I'd like to record my thoughts on the first time I need to change the chemicals and maybe how long the first set lasted.

The media could not be loaded. I wanted to do the sugar and yeast method, so I just pulled out the parts that go in the bottle. I put in one cup of sugar, one teaspoon of brewer's yeast, and warm water. With this setup, I've never had a problem with leaking and the only time I got it in my tank was when the bottle was knocked over. I love that I can turn it off at night because I was worried about suffocating my fish. This was really easy to install and it has definitely boosted the growth of my plants. I recharge each bottle every 20ish days, on an alternating schedule, and all my plants are bushier. No pearling, but my drop checker reads green. I highly recommend this for anyone with a lower light setup who doesn't want to shell out for real CO2 power.

This CO2 generator kit may seem like an affordable option for those who are new to the aquarium hobby, but it ultimately falls short in both convenience and effectiveness.Firstly, the kit requires citric acid, baking soda, and water to work, but the citric acid is not included in the package. While baking soda and water are easy to obtain, sourcing citric acid can be a challenge for many, and it would have been helpful if the manufacturer had included a small packet of it.Secondly, even after sourcing the citric acid, getting the kit to work was a challenge. The instructions were not very clear, and it took several attempts to get the generator to produce any CO2. Many other Amazon reviewers have also noted similar issues with getting the kit to function properly.Finally, even when the kit was working, it did not produce enough CO2 to have a significant impact on plant growth in the aquarium. For those serious about growing aquatic plants, investing in a proper CO2 system would be a much more effective and worthwhile option.Overall, I would not recommend this CO2 generator kit from Clscea. The hassle of sourcing citric acid and the difficulty of getting the kit to work, combined with its limited effectiveness, make it not worth the expense or effort.

I have these running on a small diy kit going into my 20-gallon community fish tank. It works so well. I run it 24/7 and my plants love it.