FZONE 2.5L Aquarium CO2 Generator System Carbon Dioxide Reactor Kit DIY Co2 Kit with Regulator And Needle Valve For Aquatic Tank (2.5 L with solenoid))

The media could not be loaded. I am extremely satisfied with the FZONE 2.5L Aquarium CO2 Generator System. The overall quality of the product is impressive, especially the sturdy SUS304 stainless steel bottle, which feels durable and well-made. Setting up the system was incredibly easy, even for someone like me who isn't a DIY expert. The instructions were clear, and everything fit together perfectly.I've been using this CO2 system for several days now, and while it's too early to determine the full impact on my plants, the precision of the needle valve and the consistency of the bubble counter give me confidence that my plants are getting the right amount of CO2. The solenoid works flawlessly with a timer, making it effortless to control the CO2 injection schedule.Overall, I'm very pleased with how this system operates and its build quality. The safety features, like the pressure release valve, add peace of mind, and the compact design makes it easy to fit alongside my aquarium setup. Highly recommended for anyone looking to upgrade their CO2 system!

This is an economical solution for feeding aquarium plants with CO2. Fun to setup and see it all working. I used 200g citric acid to 260g bicarbonate of soda and 300ml water. The 2.5l canister fits neatly next to my aquarium. The reaction starts very quickly after water is added, so screw the regulator on without delay. Use cold water. The internal pressure built up to 300psi. No problems with any parts. The solenoid works perfectly with an electricity timer plug.

This Co2 Generator is very good and works great, It is Oder free and safe to use, It is a bit tall but can be hidden under the tank, my plants are growing healthier than before, over all a great addition to the hobby. the only issue is the needle valve takes a bit of working out but when sorted adding a timer will settle this. 5 stars well deserved.

Great product, easy to use just the manual was really poor. It never mentioned the solenoid and how to use it, I had to use YouTube and the bent glass but that sits on the tank where the tubes connect is really fragile and not very well made, I broke mine first day. Other than that it’s a great product my plants have doubled in growth.

Lovely looking bit of kit, looks good along side the tank. Silent with no smells or leaks.Very easy to put together via YouTube videos and the mix is a breeze.For the 4L version, the optimum mix is 600g citric acid, 780g of baking soda and 900ml of tap water.The funnel and mixing cups that come with this are way too small so I ordered larger sizes for ease of use.The solenoid works flawlessly and the regulator seems good quality too.Co2 was produced through the diffuser in minutes.However a tip here.It takes around 24 hours for the pressure to reach correct operational pressure. I checked on it next morning to find it was releasing far too much co2 into the tank because the pressure had increased overnight.After tho it has settled into a consistent co2 injection.Another tip is to buy a co2 drop checker, which when positioned correctly in the tank gives an accurate indication of co2 levels for plant growth and fish safety.I've also ordered a better diffuser from Amazon which is meant to produce the smallest bubbles.Though to be fair the one the kit came with is perfectly adequate.First time co2 user so hoping to see a vast difference in plant growth and health.

What can I say it's a great little bit of kit very easily set-up, very uncomplicated, I have them on both of my tanks the same size and if you invest in a small wave maker and position the defuser directly under the wave maker, the wave maker circulates the co2 around the tank constantly and if you also have the outlet of the filter pushing the water in the same direction it acts as a vortex,so not only is the co2 distribution good it helps keep your tank cleaner I have it on a timer and he before the lights come on and off an hour before your lights go , that mixed with a good fertilizer routine and extra flow in your tank gives it everything you need for your plants to flourish and I have mine on a gravel substrate and if you do don't forget your root tabs

This kit works fantastically well, my 52L tank is getting a couple of months per batch when running right at the limit of co2 levels in the water. Massively reduced algae growth as the co2 encourages plant growth, which uses the nutrients that would otherwise feed the algae. Very easy to refill but I did adjust the raw materials slightly to maximise the efficiency. Customer support is also fantastic, very quick replies and they are extremely helpful.

This is my first CO2 system. Decent quality and easy to set up.No ingredients are included but cheap to buy. I highly recommend you check this system out on YouTube before you buy.Add the baking soda first then the acid as it's less reactive and covers the soda. Use cold water and pour slowly at 45 degrees. Make sure you have attached the filter and have the valve at hand as the reaction starts fairly quickly you have time to attach the valve but I wouldn't hang around. Make sure the needle valve is closed and you can attach the solenoid and fill the bubble counter with water and it's easier to connect the air line to the bubble counter before you attach it to the valve.It says 45min to 24hrs to pressurise. It hit 50psi almost straight away so I connected the airline (softened with hot water) and the diffuser on the other end. Used the suckers provided. It doesn't include a non return valve which will stop water going back into the cylinder. The needle valve is very sensitive but didn't take long to adjust to 1 bubble a second.Overall very pleased and it's cheap to run. I've got it connected to a smart plug timed to only be on when the lights are on.When refilling you may have some crystals in the bottom. Empty everything out and add boiling water just enough to cover the crystals. Leave it for 5 min then fill up with cold water as the cylinder gets really hot. Pour out the water and the crystals will be gone.