Aquarium CO2 Generator Kit Double Pressurization Enhanced Version Max for 400g+400g Raw Materials, G700S

Well built! Good instructions. Works great! Plants are now thriving - Very happy with it :)

Definitely worth a try. I will update this review after the first few months. So far, the pressure was slightly under half but my tank is small so I wasn’t bothered. Diffuser is good, regulator works, solenoid is adequate for the price. I won’t put it on a timer. I just manually turn it on and off.Turn off at night.

It took me a while to get around to setting this up. I'd done DIY co2 already with the big soda bottles & all that jazz. I was never a fan of the yeast/sugar mixtures, so had done them with baking soda/citric acid. One time a bottle blew up. Yikes! The main problem was that they just ran out too quickly & I'm too lazy to keep up with them, so I'd just gone low-tech for a long time. Then I bought some high-tech plants, & had only a single co2 tank, so thought I'd give this one a try.Once I finally got around to putting this one into action, at first I was irritated with the instructions & the bad grammar, etc. That's just typical of me, though. It seems like they could at least get English-as-1st-language interpreters to edit their lame instructions, though. The ad descriptions & videos are even amusingly lame, but they do show enough to get the gist.However, the quality of the stainless tank & attachments is really as advertised. Well-made! I docked a single star mainly due to the one thing that isn't made all that well IMO: the solenoid valve is flimsy, especially the way the wires are attached. I'm not crazy about the diffuser, either, but that's a minor issue.I've had this up & running now for more than 3 months in a smaller (25G) aquarium, & it's still putting out the co2 like a champ. I did replace the diffuser with a whittled chopstick end placed to pull into a wavemaker to blow the co2 around the aquarium better. It's great how long it's lasted, & the pressure in the tank is still pretty high. With the old DIY system, I think I had to change it out every few weeks or so. (Not to mention that exploding bottle experience. I'm still coming across crusted baking soda spots here & there.)All in all, it was a good buy & worth it.

I can't believe how long I was using the dumb old yeast+sugar reactors all these years. Never again! The measured citric acid + baking soda in a pressurized tank provides a consistent yield with no guesswork anymore and total control over the process (counting bubbles). I used the 2.4L tank for a week+ and it is working very well and the pressure has stayed consistent in tank at 20+ so I think it will last a while for my 29 gal. Getting the solenoid version was a plus as it can be turned on and off in timer with the lights. It did develop a leak in the bubble counter after a few days, and I found I was missing an o-ring (not sure if I lost it or it was never there) but the SERVICE group for Clscea company was great and came up with a replacement for it. So rest assured they support their products. The other accessories (tubing, one-way valve, diffuser) all work fine and look to be good quality.

Works very good and easy!.Update after 1 month: this product is really good and esasy to use, i use it at 2 bubbles per second, and it run for the whole month, even a little more on my 30 gallon tank. (Model G700s)When i refill it there was like cristals in the bottle but i think is a normal reaction, i just empty all the bottle and refill it.I never seen my plants grow so well, i recommend this product 100%.

Bought this on January 26th, worked amazing until 1 month ago when the outlet valve started acting weird. The bubble counter would not go above 3 per seconds, then the next time I refilled it, it wouldn’t go above 2 per second, and now it’s been a month since then and now won’t put any CO2 out at all and with the valve VERY closed all of the CO2 is leaking out.

The packaging this product comes in is first rate professional. I was shocked at the quality and sturdiness of the parts. Instructions were simple. After filling CO2 tank with ingredients, it was up to pressure the next morning. It has been running nine hrs a day for seventeen days and the needle on regulator hasn't moved. The needle valve for bubble counter is pretty sensitive and holds the same flow day after day. I have the solenoid plugged into a wifi timer and that too has been flawless. I would highly recommend this generator system to anyone considering stepping up their planted tank game. Tip.....fill bubble counter with food grade mineral oil from the get go, not water. You will find yourself having to refill the water every few days due to evaporation. The more we unscrew/screw/unplug the parts, the faster they wear out. I will be getting a second system for my 29 gallon soon.

first batch of baking soda + citric acid went perfectly.second batch clogged up my solenoid valve so it wouldn't shut off on timmer.emailed cust service.they gave me video to watch instructing how to service solenoid.followed the instructions, cleaned throughly, still didn't work.cleaned it a second time, still nothing.emailed back cust support and they told me to buy another solenoid for $20.so make sure you budget an extra $20 every time you refill, just in case.