Aquarium CO2 Generator Kit Double Pressurization Enhanced Version, G700S

I searched for weeks to find a setup that would work for my tank. I decided to go with this one because of the other reviews and the fact that customers who had issues, reported that their customer service was very helpful. I have been running this tank for three weeks and have had no issues. It's nice to know that if something does go wrong, customer service will be helpful. I used the diffuser it came with at first, but I personally didn't like the look so I switched to an inline diffuser and still works great. I didn't order the ingredients from them, I just went to the grocery store and picked up the baking soda and citric acid in bulk.A few tips regarding the set up:- do yourself a favor and order a scale to measure the ingredients. You want to be very accurate here.- make sure your ingredients are not clumpy. This isn't really an issue with citric acid but the baking soda will clump up. After you measure it, take a few seconds to sift or break up any clumps by hand. This will ensure that your reaction is strong and lasts.- the first time I added the ingredients, I didn't sift the clumps and I used coldish water. I also added the ingredients in the order they say. That tank only reached ~18 kg/cm on the gauge and the reaction lasted about 5 days. However, I found that layering the ingredients, getting rid of the clumps and using really cold water yielded way better results.- you want to use ice cold water! This is very important to make sure the reaction occurs to its max potential. I place a jug of water in the freezer to make sure it's very cold (but not frozen).- order yourself a drop checker so you can be sure your co2 levels are safe. It will help you dial in your usage. You can't do this by eye, you'll need to measure it somehow.Doing the above got my gauge to 40kg/cm in about 6 hours and I've been running for almost three weeks. I do have it connected to a smart plug on a timer to make sure i keep co2 levels safe for my fish but enough for my plants to thrive. Your usage will be different of course but if you follow these tips you will maximize the reaction for your tank.

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

Down one star as its not advertised with or without the media package, you have to buy that separately. Overall though, easy to use and to setup, qulaity is decent and the C02 lasts ages and is simple to refill. Just make sure to have a scale handy as it is not a 1:1 mix with the powders. Stand is nice, tank is a decent size but easy to hide. No noise except when it clicks on and off, display light can be clearly seen. Works great on my 29gal planted at 1 bubble a second right now.

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.

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.

Not worth the money. Had it running about 3-4 bps, and it ran out in less than 5 days. Having to try to clean out the rock hard chunks in the tank and refill it that often is a huge pain. I had it for about 3 weeks before switching to a real co2 tank from Airgas and a UNS dual stage regulator. Wish I had saved the more than $100 I spent on this plus supplies and used it towards the real setup I ended up having to get anyways. I have a 60 gallon breeder, so can't speak for how long it would last for a nano tank. But even then, the annoyance of refilling it would still have me using a real setup even for a small aquarium.

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.